{"title":"CalMag for Plants: Calcium and Magnesium Supplements","description":"\u003cp\u003eCalMag tops up calcium and magnesium, the two nutrients that tend to run short first when you feed with soft tap water or RO water, or grow in coco. Calcium helps build strong cell walls and roots, while magnesium sits at the heart of chlorophyll, so plants can turn light into energy.\u003c\/p\u003e\n\u003cp\u003eEvery CalMag here is an additive that works alongside your base feed rather than replacing it. Add it to tomatoes, chillies, peppers, herbs, salad, strawberries and houseplants to keep leaves green and new growth strong from seedling to harvest.\u003c\/p\u003e\n\u003cp\u003eWe stock CalMag from Canna, BioBizz, Shogun, Athena, Plant Magic, Monkey, Mills, Dutch Pro, Plagron and Ionic, plus single element Canna Mono bottles for fine tuning. Free UK delivery on orders of £94.99 or more (large 19L to 25L containers have a delivery charge shown at checkout), we price match, and Click \u0026amp; Collect is available from our West Bromwich store.\u003c\/p\u003e\n\n\u003ch2\u003eHow to choose a CalMag\u003c\/h2\u003e\n\u003cp\u003eStart with your water and your growing medium. If your tap water is soft, you use RO water or you grow in coco, a CalMag top up is the usual answer. Plant Magic notes that coco can bind calcium and magnesium, and that LED lighting can raise demand. On hard water you may not need one at all.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eWhat stands out\u003c\/th\u003e\n\u003cth\u003eDose on our product page\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/shogun-calmag\"\u003eShogun CalMag\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eLiquid calcium and magnesium for soil, coco and hydro, sizes from 250ml to 25L\u003c\/td\u003e\n\u003ctd\u003e1 to 3 ml per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/canna-calmag-agent\"\u003eCanna CalMag Agent\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eMade for soft tap water or RO water, in 1L, 5L or 10L\u003c\/td\u003e\n\u003ctd\u003eFollow the label\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/biobizz-calmag-organic-calcium-magnesium\"\u003eBioBizz CalMag\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e100% organic and certified, fits any BioBizz feeding schedule\u003c\/td\u003e\n\u003ctd\u003eFollow the label\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/plant-magic-magnecal\"\u003ePlant Magic MagneCal+\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eAimed at soft water, coco and LED grow rooms\u003c\/td\u003e\n\u003ctd\u003e0.5 to 1 ml per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/athena-cal-mag\"\u003eAthena Cal Mag\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eClean soluble formula for RO water and inert media such as coco and rockwool\u003c\/td\u003e\n\u003ctd\u003e2.5 ml per US gallon, or Athena's feed schedule\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/dutch-pro-cal-mag\"\u003eDutch Pro Cal Mag\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eConcentrated, includes a small amount of nitrogen, free from PGRs\u003c\/td\u003e\n\u003ctd\u003e0.1 to 1 ml per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003ca href=\"\/products\/monkey-mag-cal\"\u003eMonkey Mag Cal\u003c\/a\u003e and \u003ca href=\"\/products\/mills-calmag\"\u003eMills CalMag\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003ePartner the Monkey and Mills base feeds, suit soil, coco and hydro\u003c\/td\u003e\n\u003ctd\u003e1 to 3 ml per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/ionic-tonic-1-ltr\"\u003eIonic Tonic\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eCalcium in three forms including chelated, plus chelated iron, amino acids and seaweed extracts\u003c\/td\u003e\n\u003ctd\u003eFollow the label\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003ca href=\"\/products\/canna-mono\"\u003eCanna Calcium Mono\u003c\/a\u003e and \u003ca href=\"\/products\/canna-magnesium-mono\"\u003eCanna Magnesium Mono\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003eSingle element bottles to correct one shortage without adding the other\u003c\/td\u003e\n\u003ctd\u003eAround 1 to 2 ml per litre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAlready running a full feed range? Matching the brand keeps things simple: Canna CalMag Agent with Canna, BioBizz CalMag with BioBizz, Shogun CalMag with Shogun and so on. Our guide to \u003ca href=\"\/blogs\/news\/how-to-read-a-nutrient-feed-chart\"\u003ereading a nutrient feed chart\u003c\/a\u003e shows where CalMag fits in a weekly schedule.\u003c\/p\u003e\n\n\u003ch2\u003eCalMag FAQs\u003c\/h2\u003e\n\u003ch3\u003eDo I need CalMag with hard water?\u003c\/h3\u003e\n\u003cp\u003eOften not. Hard water already carries calcium and magnesium, so many growers on hard water skip it. It earns its place with soft tap water, RO water, coco, or when plants show signs of shortage.\u003c\/p\u003e\n\u003ch3\u003eWhat are the signs of a calcium or magnesium shortage?\u003c\/h3\u003e\n\u003cp\u003eCanna lists rusty spots and weak new growth for calcium, and yellowing between the veins on older leaves for magnesium. Shogun adds leaf curl and blossom end rot, a problem tomato and pepper growers know well. Bring a leaf into the store and we will take a look.\u003c\/p\u003e\n\u003ch3\u003eWhen do I add CalMag to my feed?\u003c\/h3\u003e\n\u003cp\u003eCanna, Athena and Dutch Pro all say to add CalMag to clean water first, then your base nutrients and any other additives. Check and adjust pH once everything is mixed.\u003c\/p\u003e\n\u003ch3\u003eCan I use CalMag in soil, coco and hydro?\u003c\/h3\u003e\n\u003cp\u003eYes. The CalMag products in this range are made for soil, coco and hydroponic systems. Coco growers tend to use it most, as coco can hold on to calcium and magnesium.\u003c\/p\u003e\n\u003ch3\u003eDoes CalMag replace my base nutrients?\u003c\/h3\u003e\n\u003cp\u003eNo. CalMag is a supplement that sits alongside a complete base feed. Browse our \u003ca href=\"\/collections\/base-nutrients\"\u003ebase nutrients\u003c\/a\u003e and the wider \u003ca href=\"\/collections\/additives-boosters\"\u003eadditives and boosters\u003c\/a\u003e range to build the rest of your feeding programme.\u003c\/p\u003e\n\n\u003cp\u003eNeed advice? Visit our West Bromwich store, call 0121 553 7872 or WhatsApp our experts.\u003c\/p\u003e","products":[{"product_id":"monkey-mag-cal","title":"Monkey Mag Cal Calcium \u0026 Magnesium Additive","description":"\u003cp\u003ePrevent nutrient deficiencies and support strong, resilient plants with Monkey Mag Cal, a high-quality calcium and magnesium additive designed for use in soil, coco and hydroponic systems. By providing these critical secondary nutrients, Monkey Mag Cal helps strengthen stems, improve leaf health and optimise nutrient uptake for vigorous growth and maximum yields.\u003c\/p\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cstrong\u003eRead the full product overview here...\u003c\/strong\u003e\u003c\/summary\u003e\n\n  \u003cp\u003eMonkey Mag Cal supplies plants with readily available calcium and magnesium, two essential nutrients required for robust structural growth, chlorophyll production and efficient photosynthesis. Calcium supports cell wall formation and root development, while magnesium is vital for chlorophyll synthesis, ensuring your plants can produce energy effectively.\u003c\/p\u003e\n\n  \u003cp\u003eThis supplement is especially useful in soft water areas or when using reverse osmosis (RO) water, where natural calcium and magnesium levels may be insufficient. Easy to mix and integrate with base nutrient programs, Monkey Mag Cal ensures consistent plant performance throughout all growth stages.\u003c\/p\u003e\n\n  \u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePrevents Deficiencies: Supplies essential calcium and magnesium in a readily absorbable form.\u003c\/li\u003e\n    \u003cli\u003eSupports Vigorous Growth: Strengthens stems, roots and overall plant structure.\u003c\/li\u003e\n    \u003cli\u003eImproves Nutrient Uptake: Enhances absorption of macro- and micronutrients.\u003c\/li\u003e\n    \u003cli\u003eVersatile Application: Suitable for soil, coco coir and hydroponic systems.\u003c\/li\u003e\n    \u003cli\u003eEasy to Use: Simple to add to your nutrient solution without complex preparation.\u003c\/li\u003e\n    \u003cli\u003eCompatible with Base Nutrients: Works seamlessly with Monkey Grow A \u0026amp; B or other nutrient programs.\u003c\/li\u003e\n    \u003cli\u003eSupports All Growth Stages: Useful from seedling through flowering to ensure healthy development.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eHow to Use\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eShake well before use.\u003c\/li\u003e\n    \u003cli\u003eDosage: Add 1 to 3 ml per litre of water, adjusting based on plant size and water quality.\u003c\/li\u003e\n    \u003cli\u003eFrequency: Apply regularly during vegetative and flowering stages, or when calcium or magnesium deficiencies appear.\u003c\/li\u003e\n    \u003cli\u003eMixing: Combine with your base nutrients, ensuring even distribution and proper pH.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n  \u003cp\u003e\u003cstrong\u003eWhen should I use Monkey Mag Cal?\u003c\/strong\u003e\u003cbr\u003e\n  Apply throughout the entire growth cycle, particularly in soft water areas or when using RO water.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eCan it be used with all grow mediums?\u003c\/strong\u003e\u003cbr\u003e\n  Yes, fully compatible with soil, coco coir and hydroponic systems.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eDoes it replace a base nutrient system?\u003c\/strong\u003e\u003cbr\u003e\n  No, Monkey Mag Cal is an additive to supplement your existing nutrient program.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eWill it work in hard water?\u003c\/strong\u003e\u003cbr\u003e\n  Yes, effective in both soft and hard water, but particularly beneficial where calcium and magnesium are naturally low.\u003c\/p\u003e\n\n  \u003cp\u003eCalcium and magnesium are essential secondary nutrients that directly affect plant strength, leaf health and nutrient efficiency. Monkey Mag Cal ensures your plants have a steady supply of these nutrients, reducing the risk of deficiencies that can stunt growth or reduce yields. By supporting structural integrity and improving nutrient uptake, it helps growers achieve stronger, healthier plants with optimal growth and higher-quality harvests, making it an indispensable addition to any serious cultivation setup.\u003c\/p\u003e\n\u003c\/details\u003e\n","brand":"Monkey Nutrients","offers":[{"title":"250ML","offer_id":52576630014279,"sku":"bcs-0366","price":5.0,"currency_code":"GBP","in_stock":true},{"title":"1L","offer_id":52576630047047,"sku":"bcs-0367","price":17.0,"currency_code":"GBP","in_stock":true},{"title":"5L","offer_id":52576630079815,"sku":"bcs-0368","price":55.0,"currency_code":"GBP","in_stock":true},{"title":"10L","offer_id":52576630112583,"sku":"bcs-0369","price":100.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/Mag_Cal_Website_Image_fIANL.webp?v=1778681267"},{"product_id":"mills-calmag","title":"Mills CalMag Calcium \u0026 Magnesium Additive","description":"\u003cp\u003ePrevent nutrient deficiencies and support robust plant development with Mills CalMag, a high-quality calcium and magnesium additive designed for soil, coco and hydroponic systems. Trusted by growers, Mills CalMag provides these essential secondary nutrients in a form that is readily absorbed, helping to strengthen cell walls, improve leaf health and support overall plant vitality.\u003c\/p\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eRead the full product overview here...\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eMills CalMag delivers a precise blend of calcium and magnesium, two critical nutrients required for strong structural growth, nutrient uptake and photosynthesis. Calcium supports cell wall formation and root development, while magnesium is a core component of chlorophyll, aiding energy production and growth efficiency.\u003c\/p\u003e\n\u003cp\u003eFormulated to prevent common deficiencies, Mills CalMag is especially useful in soft water areas or when using reverse osmosis (RO) water, where calcium and magnesium levels may be naturally low. Easy to mix and integrate with your base nutrient program, it ensures consistent, reliable plant performance.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrevents Deficiencies: Supplies calcium and magnesium in a highly available form.\u003c\/li\u003e\n\u003cli\u003eSupports Vigorous Growth: Strengthens stems, roots and overall plant structure.\u003c\/li\u003e\n\u003cli\u003eEnhances Nutrient Uptake: Improves absorption of other essential nutrients.\u003c\/li\u003e\n\u003cli\u003eVersatile Application: Suitable for soil, coco coir and hydroponic systems.\u003c\/li\u003e\n\u003cli\u003eEasy to Use: Simple to add to your nutrient solution without complex preparation.\u003c\/li\u003e\n\u003cli\u003eCompatible with Base Nutrients: Complements Mills Basis A \u0026amp; B and other nutrient programs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eShake Well: Always shake before use.\u003c\/li\u003e\n\u003cli\u003eDosage: Add 1 to 3 ml per litre of water, adjusting based on plant needs and water hardness.\u003c\/li\u003e\n\u003cli\u003eFrequency: Use regularly throughout the vegetative and flowering stages, or when deficiency symptoms appear.\u003c\/li\u003e\n\u003cli\u003eMixing: Combine with your base nutrients, ensuring even distribution and proper pH balance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhen should I use Mills CalMag?\u003c\/strong\u003e\u003cbr\u003eUse throughout the entire growth cycle, particularly in soft water areas or when using RO water. It’s also ideal when deficiency symptoms, such as leaf curl or yellowing, appear.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used with all grow mediums?\u003c\/strong\u003e\u003cbr\u003eYes, compatible with soil, coco coir and hydroponic setups.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it replace a base nutrient system?\u003c\/strong\u003e\u003cbr\u003eNo, Mills CalMag is an additive, designed to supplement your existing nutrient program.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it work in hard water?\u003c\/strong\u003e\u003cbr\u003eYes, effective in both soft and hard water, but particularly beneficial where calcium and magnesium are naturally low.\u003c\/p\u003e\n\u003cp\u003eCalcium and magnesium are essential secondary nutrients that directly affect plant strength, leaf health and nutrient efficiency. Mills CalMag ensures your plants have a steady supply, reducing the risk of deficiencies that can stunt growth or reduce yields. By supporting structural integrity and enhancing nutrient uptake, it helps growers achieve stronger, healthier plants with better overall performance, making it an essential supplement for any serious grower.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Mills","offers":[{"title":"1L","offer_id":52583440384327,"sku":"bcs-0325","price":24.95,"currency_code":"GBP","in_stock":true},{"title":"5L","offer_id":52583440417095,"sku":"bcs-0326","price":105.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/CALMAG-1L-Trans-1000px.png?v=1793705873"},{"product_id":"shogun-calmag","title":"Shogun CalMag Calcium \u0026 Magnesium Additive","description":"\u003cp\u003eSupport strong, vibrant plants with Shogun CalMag, a premium calcium and magnesium additive designed to prevent deficiencies, improve nutrient uptake and strengthen plant cell structure. Ideal for soil, coco coir and hydroponic systems, Shogun CalMag ensures your plants have the essential minerals they need for healthy growth, robust stems and lush foliage.\u003c\/p\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cstrong\u003eRead the full product details here...\u003c\/strong\u003e\u003c\/summary\u003e\n\n  \u003cp\u003eUsed by growers to maintain optimum plant health, this supplement helps maximise growth potential while reducing the risk of common nutrient-related issues.\u003c\/p\u003e\n\n  \u003cp\u003eShogun CalMag provides a balanced supply of calcium and magnesium, two critical secondary nutrients required for strong cell walls, improved photosynthesis and overall plant resilience. Deficiencies in these nutrients can lead to leaf curl, blossom end rot, yellowing leaves and poor growth.\u003c\/p\u003e\n\n  \u003cp\u003eThis liquid additive is easy to use, fully water-soluble and compatible with a variety of nutrient programs, making it a versatile solution for maintaining nutrient balance and supporting healthy plant development from seedling to harvest.\u003c\/p\u003e\n\n  \u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePrevents Calcium \u0026amp; Magnesium Deficiency: Supports strong stems, healthy leaves and flower\/fruit development.\u003c\/li\u003e\n    \u003cli\u003eEnhances Nutrient Uptake: Improves the efficiency of other nutrients in your feeding program.\u003c\/li\u003e\n    \u003cli\u003eSupports Robust Growth: Promotes overall plant health, resilience and vigour.\u003c\/li\u003e\n    \u003cli\u003eCompatible with All Grow Mediums: Works in soil, coco coir and hydroponic systems.\u003c\/li\u003e\n    \u003cli\u003eEasy-to-Use Liquid Formula: Mixes seamlessly into your nutrient solution or irrigation water.\u003c\/li\u003e\n    \u003cli\u003eSafe for Plants: Balanced formulation reduces the risk of nutrient burn or imbalance.\u003c\/li\u003e\n    \u003cli\u003eVersatile Application: Suitable for all stages of plant growth, from seedlings to flowering.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eHow to Use\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eShake well before use.\u003c\/li\u003e\n    \u003cli\u003eMix 1 to 3 ml per litre of water depending on plant size and growth stage.\u003c\/li\u003e\n    \u003cli\u003eApply during watering or as part of your regular nutrient feed.\u003c\/li\u003e\n    \u003cli\u003eUse throughout the vegetative and flowering stages as required.\u003c\/li\u003e\n    \u003cli\u003eAdjust pH after mixing nutrients if necessary.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n  \u003cp\u003e\u003cstrong\u003eWhat is Shogun CalMag used for?\u003c\/strong\u003e\u003cbr\u003e\n  It supplies essential calcium and magnesium to prevent deficiencies and promote strong plant growth.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eCan I use it with all growing mediums?\u003c\/strong\u003e\u003cbr\u003e\n  Yes, it is compatible with soil, coco coir and hydroponic systems.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eIs Shogun CalMag safe for seedlings?\u003c\/strong\u003e\u003cbr\u003e\n  Yes, use lower concentrations for young plants to support early growth without risk of nutrient burn.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eCan I mix it with my existing nutrients?\u003c\/strong\u003e\u003cbr\u003e\n  Yes, it integrates seamlessly into your regular nutrient program.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eWhen should I apply it?\u003c\/strong\u003e\u003cbr\u003e\n  Apply as needed throughout the vegetative and flowering stages to maintain optimal calcium and magnesium levels.\u003c\/p\u003e\n\n  \u003cp\u003eCalcium and magnesium are vital for healthy plant structure, efficient nutrient uptake and strong flowering or fruiting. Shogun CalMag ensures your plants receive these essential minerals in the correct balance, preventing deficiencies that can stunt growth or reduce yield. By supporting robust cell walls, improved photosynthesis and overall plant vigour, this supplement helps growers achieve healthier, more productive plants and higher-quality harvests.\u003c\/p\u003e\n\u003c\/details\u003e\n","brand":"Shogun","offers":[{"title":"250ml","offer_id":52636117795143,"sku":"bcs-0301","price":5.39,"currency_code":"GBP","in_stock":true},{"title":"1L","offer_id":52583478460743,"sku":"bcs-0301","price":11.99,"currency_code":"GBP","in_stock":true},{"title":"5L","offer_id":52583478493511,"sku":"bcs-0302","price":40.99,"currency_code":"GBP","in_stock":true},{"title":"10L","offer_id":52583478526279,"sku":"bcs-0303","price":70.99,"currency_code":"GBP","in_stock":true},{"title":"25L","offer_id":52583478559047,"sku":"bcs-0304","price":159.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/HYN-2678_4627eafd-cc10-401c-a77f-7ed63725579b.webp?v=1778249305"},{"product_id":"canna-mono","title":"Canna Calcium (Ca 15%) Mono 1L","description":"\u003cp\u003eWhen your plants need a little extra of one specific nutrient, Canna Mono delivers a clean, precise solution. These highly concentrated, single-element (or trace-mix) nutrients let you correct deficiencies or fine-tune feeding without disturbing the rest of your nutrient programme. Ideal for growers using soil, coco, hydro or mixed-media setups.\u003c\/p\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eread the full product overview here...\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eCanna Mono is not a full-spectrum fertiliser: each bottle contains one key nutrient (or a trace-element blend), such as Nitrogen, Phosphorus, Potassium, Calcium, Magnesium, Iron or a Trace Mix.\u003cbr\u003eThis targeted approach allows you to address specific nutrient shortages, for example a magnesium or iron deficiency, without oversupplying other elements. It’s particularly useful when using purified or RO water, re-using substrate or running specialised nutrient programmes.\u003cbr\u003eCanna Mono is fully compatible with Canna base nutrients (such as Coco A \u0026amp; B, Terra or Hydro) and other nutrient lines, making it a flexible add-on for both new and experienced growers.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrecise Deficiency Fixes: Supplies a single nutrient or trace-element mix, ideal for correcting deficiencies without upsetting overall nutrient balance.\u003c\/li\u003e\n\u003cli\u003eBoosts Specific Growth Needs: Nitrogen supports leafy growth, Potassium strengthens cell walls, Magnesium and Iron support photosynthesis, while Trace Mix aids enzyme activity and plant health.\u003c\/li\u003e\n\u003cli\u003eEnhanced Nutrient Control: Allows fine-tuning of nutrient ratios, especially useful with RO or soft water, coco, hydro or custom feeding programmes.\u003c\/li\u003e\n\u003cli\u003eCompatible With All Media Types: Suitable for soil, coco coir, hydroponics, rockwool and mixed-media systems.\u003c\/li\u003e\n\u003cli\u003eSupplement Rather Than Base Feed: Designed to work alongside a complete nutrient programme rather than replace it.\u003c\/li\u003e\n\u003cli\u003eIdeal for Rescue or Targeted Boosts: Useful when plants show deficiency symptoms, after lockout issues, or to support specific growth phases.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIdentify the deficiency first by observing plant symptoms and confirming which nutrient is lacking.\u003c\/li\u003e\n\u003cli\u003eIf nutrient imbalance or pH issues are suspected, consider flushing the medium with plain water before application.\u003c\/li\u003e\n\u003cli\u003eMix at approximately 10 to 20 ml per 10 L of water (around 1 to 2 ml per litre), depending on the product and severity of deficiency.\u003c\/li\u003e\n\u003cli\u003eAdd to your regular nutrient solution and mix thoroughly. Avoid mixing incompatible concentrates directly.\u003c\/li\u003e\n\u003cli\u003eMonitor plant response and return to standard feeding once symptoms improve.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cstrong\u003eWhen should I use Canna Mono?\u003c\/strong\u003e\u003cbr\u003eUse Mono when a specific deficiency is identified or when you need to fine-tune nutrient ratios beyond a standard base feed.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCan Mono replace a complete nutrient programme?\u003c\/strong\u003e\u003cbr\u003eNo, Canna Mono is a supplemental product and should be used alongside a full-spectrum base nutrient.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eIs Mono suitable for soil, coco and hydro systems?\u003c\/strong\u003e\u003cbr\u003eYes, all Canna Mono products are compatible with soil, coco coir, hydroponics and rockwool media.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCan I mix different Mono products together?\u003c\/strong\u003e\u003cbr\u003eSome combinations can cause issues if mixed directly or overused. Always follow dosage guidelines and avoid mixing incompatible concentrates.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWill Mono help when using RO or very soft water?\u003c\/strong\u003e\u003cbr\u003eYes, Mono is particularly helpful for correcting macro- or micronutrient deficiencies that can occur with low-mineral water sources.\u003cbr\u003e\u003cbr\u003e\n\u003cp\u003eCanna Mono acts like a nutrient toolbox, giving you individual elements to address specific plant needs as they arise. Whether correcting deficiencies, fine-tuning feeding or supporting plants after flushing or stress, Mono provides precise control and flexibility for a healthier, more responsive grow.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Canna","offers":[{"title":"Default Title","offer_id":52584138735943,"sku":"bcs-0237","price":15.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/21_dde147dc-7652-4cbb-970e-816efab752e3.png?v=1760902692"},{"product_id":"athena-cal-mag","title":"Athena Cal Mag Calcium \u0026 Magnesium Supplement","description":"\u003cp\u003eEnsure your plants receive the vital secondary nutrients they need with Athena Cal Mag. High-quality calcium and magnesium supplements designed to correct deficiencies, support nutrient uptake and promote healthy growth across hydroponic, coco and soil setups.\u003c\/p\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eread the full product overview here...\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eAthena Cal Mag delivers a precise balance of calcium (Ca) and magnesium (Mg), essential for robust cell structure, efficient photosynthesis and strong plant development. For growers using soft or reverse-osmosis (RO) water, inert media such as coco coir or rockwool, or for preventing mineral deficiencies during growth, this supplement maintains plant vitality and yield potential. \u003cbr\u003eWith a clean, water-soluble formula that mixes seamlessly with your nutrient programme, Athena Cal Mag ensures straightforward feeding and consistent performance across houseplants, vegetables, herbs, and larger container or hydroponic crops.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrevents Calcium \u0026amp; Magnesium Deficiencies: Addresses weak stems, poor root development, leaf yellowing and blossom-end issues often caused by soft or mineral-depleted water\u003c\/li\u003e\n\u003cli\u003eSupports Strong Cell Structure \u0026amp; Nutrient Transport: Calcium strengthens cell walls and roots, while magnesium supports chlorophyll production and photosynthesis for healthier growth and richer foliage\u003c\/li\u003e\n\u003cli\u003eIdeal for RO Water, Soft Water and Inert Media: Ensures nutrients are available in coco, rockwool or hydro setups where water lacks minerals naturally\u003c\/li\u003e\n\u003cli\u003eClean, Soluble \u0026amp; Easy to Mix: Dissolves instantly and blends well with base nutrients or boosters, without clogging drippers or irrigation systems\u003c\/li\u003e\n\u003cli\u003eFlexible Use Across Growth Stages: Can be used throughout vegetative and flowering phases, whenever additional Ca\/Mg support is needed or as a preventative measure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to Use \/ Application Guidelines\u003c\/h3\u003e\nShake well before use\u003cbr\u003eAdd to clean water before mixing base nutrients or other additives to ensure maximum solubility and prevent nutrient lock-out\u003cbr\u003eTypical dosage: 2.5 mL per US gallon of water (or follow Athena’s feed schedule), adjusting for water quality, growth stage and plant needs\u003cbr\u003eMonitor EC and pH after mixing, especially important in coco or hydro systems\u003cbr\u003eUse throughout all growth stages, from early vegetative growth through flowering, particularly with RO water or inert media\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cstrong\u003eWhy should I use Athena Cal Mag instead of just base nutrients?\u003c\/strong\u003e\u003cbr\u003eBase nutrient mixes may lack sufficient calcium and magnesium, especially with soft or RO water or inert media. Athena Cal Mag ensures these critical nutrients are available to prevent deficiency symptoms.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWhat problems does a calcium\/magnesium deficiency cause?\u003c\/strong\u003e\u003cbr\u003eCalcium deficiency can lead to weak cell walls, poor root and stem development, distorted new growth or blossom-end issues. Magnesium deficiency affects chlorophyll production and photosynthesis, causing yellowing leaves and reduced growth vigour.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCan I use Athena Cal Mag with hydro, coco or soil?\u003c\/strong\u003e\u003cbr\u003eYes. Athena Cal Mag works with hydroponic systems, coco coir, rockwool and traditional soil media.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWhen should I add Cal Mag to my feeding routine?\u003c\/strong\u003e\u003cbr\u003eAdd to water first, before other nutrients, then follow with your regular feed. Use during active growth or if Ca\/Mg deficiencies are suspected, especially with soft or filtered water.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWill Athena Cal Mag interfere with my existing nutrient program?\u003c\/strong\u003e\u003cbr\u003eNo, when used as instructed. Monitor EC and pH after mixing and adjust as necessary. Follow a balanced feeding schedule and avoid overuse to prevent nutrient imbalance.\u003cbr\u003e\u003cbr\u003eAthena Cal Mag ensures your plants receive the calcium and magnesium needed for strong roots, healthy foliage and robust yields, particularly when using RO or soft water, coco, or hydro systems. Its clean, soluble formula and flexible application make it an essential supplement for growers seeking consistency, quality and peace of mind. \u003cbr\u003eBy preventing deficiencies before they occur and supporting optimal nutrient uptake, Athena Cal Mag helps plants reach their full potential, resulting in greener growth, stronger stems and improved overall performance.\u003c\/details\u003e","brand":"Athena","offers":[{"title":"1L","offer_id":52584224719175,"sku":"bcs-0220","price":16.99,"currency_code":"GBP","in_stock":true},{"title":"4L","offer_id":52584224751943,"sku":"bcs-0221","price":38.99,"currency_code":"GBP","in_stock":true},{"title":"19L","offer_id":52584224784711,"sku":"bcs-0222","price":179.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/CM_32_F_A02.002.webp?v=1778758235"},{"product_id":"plant-magic-magnecal","title":"Plant magic MagneCal+ 5L","description":"\u003cp\u003ePrevent common nutrient deficiencies and keep plants thriving with Plant Magic Magne-Cal, a high-quality calcium and magnesium supplement designed to support healthy growth, strong cell structure and improved nutrient uptake. Ideal for use in soft water areas, coco coir and LED-lit grow rooms, Magne-Cal helps maintain optimal plant health throughout the grow cycle.\u003c\/p\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cstrong\u003eRead the full product details here...\u003c\/strong\u003e\u003c\/summary\u003e\n\n  \u003cp\u003ePlant Magic Magne-Cal is a carefully balanced calcium and magnesium additive formulated to prevent and correct Ca\/Mg deficiencies that can limit growth and reduce yields. Calcium is essential for strong cell walls and healthy root development, while magnesium plays a vital role in chlorophyll production and photosynthesis.\u003c\/p\u003e\n\n  \u003cp\u003eThis supplement is especially beneficial when using Reverse Osmosis (RO) or soft water, coco substrates, or high-intensity LED lighting, all of which can increase calcium and magnesium demand. Magne-Cal is suitable for use during both vegetative growth and flowering and works seamlessly alongside your base nutrient programme.\u003c\/p\u003e\n\n  \u003cp\u003eCompatible with soil, coco and hydroponic systems, Plant Magic Magne-Cal is an essential additive for maintaining balanced nutrition and preventing growth problems before they occur.\u003c\/p\u003e\n\n  \u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePrevents Calcium \u0026amp; Magnesium Deficiencies: Supports healthy growth and nutrient balance.\u003c\/li\u003e\n    \u003cli\u003eStrengthens Plant Structure: Calcium helps build strong cell walls and roots.\u003c\/li\u003e\n    \u003cli\u003eImproves Photosynthesis: Magnesium supports chlorophyll production.\u003c\/li\u003e\n    \u003cli\u003eIdeal for Soft \u0026amp; RO Water: Corrects low Ca\/Mg levels in purified water.\u003c\/li\u003e\n    \u003cli\u003ePerfect for Coco Grows: Helps maintain proper Ca\/Mg balance in coco substrates.\u003c\/li\u003e\n    \u003cli\u003eLED Grow Friendly: Supports increased nutrient demand under LED lighting.\u003c\/li\u003e\n    \u003cli\u003eUse Throughout the Grow Cycle: Suitable for veg and flowering stages.\u003c\/li\u003e\n    \u003cli\u003eEasy-to-Use Liquid Formula: Mixes easily with nutrient solutions.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eHow to Use\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eShake well before use.\u003c\/li\u003e\n    \u003cli\u003eMix 0.5 to 1 ml per litre of water.\u003c\/li\u003e\n    \u003cli\u003eUse with every watering or as required to correct deficiencies.\u003c\/li\u003e\n    \u003cli\u003eSuitable for use during vegetative growth and flowering.\u003c\/li\u003e\n    \u003cli\u003eAdjust pH after mixing all nutrients.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cem\u003eTip:\u003c\/em\u003e Increase dosage slightly when using RO water, coco coir or under high-intensity LED lighting.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n  \u003cp\u003e\u003cstrong\u003eWhat does Plant Magic Magne-Cal do?\u003c\/strong\u003e\u003cbr\u003e\n  It supplies essential calcium and magnesium to prevent deficiencies and support healthy plant growth.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eWhen should I use Magne-Cal?\u003c\/strong\u003e\u003cbr\u003e\n  It can be used throughout the entire grow cycle, especially when using soft or RO water.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eIs Magne-Cal suitable for coco grows?\u003c\/strong\u003e\u003cbr\u003e\n  Yes, it’s highly recommended for coco, which can bind calcium and magnesium.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eCan I use Magne-Cal with all nutrient brands?\u003c\/strong\u003e\u003cbr\u003e\n  Yes, it’s compatible with most nutrient programmes.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eWill Magne-Cal help with LED grow issues?\u003c\/strong\u003e\u003cbr\u003e\n  Yes, LED lighting often increases Ca\/Mg demand, making Magne-Cal ideal for LED setups.\u003c\/p\u003e\n\n  \u003cp\u003eCalcium and magnesium deficiencies are among the most common issues growers face, particularly when using coco, RO water or LED lighting. Plant Magic Magne-Cal provides a simple, effective solution by restoring essential minerals that support strong growth, efficient photosynthesis and overall plant health. Easy to use and highly versatile, Magne-Cal helps prevent problems before they impact yield, making it an essential supplement for consistent, high-quality results.\u003c\/p\u003e\n\u003c\/details\u003e\n","brand":"Plant Magic","offers":[{"title":"Default Title","offer_id":52584350187847,"sku":"bcs-0204","price":56.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/10_3e6dced3-e157-4cad-a4b9-8d8ab305f1b0.png?v=1760904126"},{"product_id":"dutch-pro-cal-mag","title":"Dutch Pro Cal Mag","description":"\u003cp\u003eKeep your plants thriving with Dutch Pro CalMag, a concentrated dual-element supplement designed to prevent and correct calcium and magnesium deficiencies, two nutrients vital for plant structure, chlorophyll production and overall plant development. Perfect for growers using soil, coco or hydroponic systems, this additive ensures your plants get the extra support they need for vigorous growth and optimal yields.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eread the full product overview here...\u003c\/strong\u003e\u003c\/summary\u003e\n\n\u003cp\u003ePlants require calcium (Ca) and magnesium (Mg) in significant amounts to maintain strong cell walls, support enzyme activity and produce chlorophyll, the green pigment critical for photosynthesis. Dutch Pro CalMag delivers these elements in a highly concentrated, easy-to-mix liquid that helps eliminate deficiencies before they impact growth. Its balanced formula also includes a small amount of nitrogen to further support plant metabolism.\u003c\/p\u003e\n\n\u003cp\u003eUse Dutch Pro CalMag regularly throughout your grow cycle, especially in fast-growing or CO₂-enriched environments where plants can utilise more calcium and magnesium than usual.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrevents \u0026amp; Corrects Ca\/Mg Deficiencies: Calcium and magnesium are essential for healthy cell structure and chlorophyll production, key to strong leaves, stems and overall plant vigour.\u003c\/li\u003e\n\u003cli\u003eBoosts Chlorophyll \u0026amp; Photosynthesis: Ensures sufficient magnesium levels so plants can produce chlorophyll efficiently and convert light into energy.\u003c\/li\u003e\n\u003cli\u003eSupports Healthy Growth: Including a touch of nitrogen helps promote protein synthesis and energy transfer within the plant.\u003c\/li\u003e\n\u003cli\u003eSuitable for All Media: Works with soil, coco coir and hydroponic systems, giving you flexibility across grow setups.\u003c\/li\u003e\n\u003cli\u003eClean, PGR-Free Formula: No plant growth regulators (PGRs) are used, keeping your nutrition clean and predictable.\u003c\/li\u003e\n\u003cli\u003eEasy to Mix \u0026amp; Apply: Concentrated liquid form mixes quickly with water for consistent feeding at every stage of growth.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eShake well before use.\u003c\/li\u003e\n\u003cli\u003eDosage: Mix 0.1 to 1 ml per 1 L of water, adjust within this range based on plant needs and growth stage.\u003c\/li\u003e\n\u003cli\u003eFeeding Frequency: Use alongside your regular nutrient solution throughout veg and bloom to maintain adequate Ca and Mg levels.\u003c\/li\u003e\n\u003cli\u003eApplication: Add Dutch Pro CalMag directly to your feed water and mix thoroughly. Suitable for manual watering or automated irrigation systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cstrong\u003eWhat does Dutch Pro CalMag do?\u003c\/strong\u003e\u003cbr\u003e\nIt supplements calcium and magnesium, two key macro elements plants use for cell structure, chlorophyll production and enzyme function, helping prevent deficiency symptoms and maintain healthy growth.\u003cbr\u003e\u003cbr\u003e\n\n\u003cstrong\u003eWhen should I use CalMag?\u003c\/strong\u003e\u003cbr\u003e\nUse it throughout the grow cycle, especially in fast growth, CO₂-enriched environments, or when plants show signs of magnesium or calcium deficiency.\u003cbr\u003e\u003cbr\u003e\n\n\u003cstrong\u003eCan CalMag be used with other nutrients?\u003c\/strong\u003e\u003cbr\u003e\nYes, it’s designed to complement base nutrients in soil, coco and hydroponic systems. Always mix CalMag with water before adding other additives.\u003cbr\u003e\u003cbr\u003e\n\n\u003cstrong\u003eDoes this product contain plant growth regulators (PGRs)?\u003c\/strong\u003e\u003cbr\u003e\nNo, Dutch Pro CalMag is free from PGRs, keeping your nutrient programme clean and predictable.\u003cbr\u003e\u003cbr\u003e\n\n\u003cstrong\u003eWill CalMag help my yield?\u003c\/strong\u003e\u003cbr\u003e\nBy correcting Ca\/Mg deficiencies and supporting chlorophyll production and nutrient uptake, CalMag can help plants maintain healthy growth and reach their yield potential.\u003cbr\u003e\u003cbr\u003e\n\n\u003cp\u003eIf your plants are growing quickly, are in CO₂-enriched environments, or are showing early signs of calcium or magnesium deficiency, adding Dutch Pro CalMag to your feeding schedule helps maintain balanced nutrition. Proper calcium and magnesium levels are essential for strong root and stem development, effective photosynthesis and smooth nutrient transport, all of which contribute to healthier plants and better crop performance.\u003c\/p\u003e\n\u003c\/details\u003e\n","brand":"Dutch Pro","offers":[{"title":"1L","offer_id":52653727580487,"sku":"bcs-0041","price":17.99,"currency_code":"GBP","in_stock":true},{"title":"5L","offer_id":52653727613255,"sku":"bcs-0042","price":75.77,"currency_code":"GBP","in_stock":true},{"title":"10L","offer_id":52653727646023,"sku":"bcs-0043","price":147.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/Calmag_1L_20EU.jpg?v=1793705542"},{"product_id":"canna-magnesium-mono","title":"Canna Magnesium (MgO 7%) Mono 1L","description":"\u003cp\u003eWhen your plants need a little extra of one specific nutrient, Canna Mono delivers a clean, precise solution. These highly concentrated, single-element (or trace-mix) nutrients let you correct deficiencies or fine-tune feeding without disturbing the rest of your nutrient programme. Ideal for growers using soil, coco, hydro or mixed-media setups.\u003c\/p\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eread the full product overview here...\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eCanna Mono is not a full-spectrum fertiliser: each bottle contains one key nutrient (or a trace-element blend), such as Nitrogen, Phosphorus, Potassium, Calcium, Magnesium, Iron or a Trace Mix.\u003cbr\u003eThis targeted approach allows you to address specific nutrient shortages, for example a magnesium or iron deficiency, without oversupplying other elements. It’s particularly useful when using purified or RO water, re-using substrate or running specialised nutrient programmes.\u003cbr\u003eCanna Mono is fully compatible with Canna base nutrients (such as Coco A \u0026amp; B, Terra or Hydro) and other nutrient lines, making it a flexible add-on for both new and experienced growers.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrecise Deficiency Fixes: Supplies a single nutrient or trace-element mix, ideal for correcting deficiencies without upsetting overall nutrient balance.\u003c\/li\u003e\n\u003cli\u003eBoosts Specific Growth Needs: Nitrogen supports leafy growth, Potassium strengthens cell walls, Magnesium and Iron support photosynthesis, while Trace Mix aids enzyme activity and plant health.\u003c\/li\u003e\n\u003cli\u003eEnhanced Nutrient Control: Allows fine-tuning of nutrient ratios, especially useful with RO or soft water, coco, hydro or custom feeding programmes.\u003c\/li\u003e\n\u003cli\u003eCompatible With All Media Types: Suitable for soil, coco coir, hydroponics, rockwool and mixed-media systems.\u003c\/li\u003e\n\u003cli\u003eSupplement Rather Than Base Feed: Designed to work alongside a complete nutrient programme rather than replace it.\u003c\/li\u003e\n\u003cli\u003eIdeal for Rescue or Targeted Boosts: Useful when plants show deficiency symptoms, after lockout issues, or to support specific growth phases.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIdentify the deficiency first by observing plant symptoms and confirming which nutrient is lacking.\u003c\/li\u003e\n\u003cli\u003eIf nutrient imbalance or pH issues are suspected, consider flushing the medium with plain water before application.\u003c\/li\u003e\n\u003cli\u003eMix at approximately 10 to 20 ml per 10 L of water (around 1 to 2 ml per litre), depending on the product and severity of deficiency.\u003c\/li\u003e\n\u003cli\u003eAdd to your regular nutrient solution and mix thoroughly. Avoid mixing incompatible concentrates directly.\u003c\/li\u003e\n\u003cli\u003eMonitor plant response and return to standard feeding once symptoms improve.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cstrong\u003eWhen should I use Canna Mono?\u003c\/strong\u003e\u003cbr\u003eUse Mono when a specific deficiency is identified or when you need to fine-tune nutrient ratios beyond a standard base feed.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCan Mono replace a complete nutrient programme?\u003c\/strong\u003e\u003cbr\u003eNo, Canna Mono is a supplemental product and should be used alongside a full-spectrum base nutrient.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eIs Mono suitable for soil, coco and hydro systems?\u003c\/strong\u003e\u003cbr\u003eYes, all Canna Mono products are compatible with soil, coco coir, hydroponics and rockwool media.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCan I mix different Mono products together?\u003c\/strong\u003e\u003cbr\u003eSome combinations can cause issues if mixed directly or overused. Always follow dosage guidelines and avoid mixing incompatible concentrates.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWill Mono help when using RO or very soft water?\u003c\/strong\u003e\u003cbr\u003eYes, Mono is particularly helpful for correcting macro- or micronutrient deficiencies that can occur with low-mineral water sources.\u003cbr\u003e\u003cbr\u003e\n\u003cp\u003eCanna Mono acts like a nutrient toolbox, giving you individual elements to address specific plant needs as they arise. Whether correcting deficiencies, fine-tuning feeding or supporting plants after flushing or stress, Mono provides precise control and flexibility for a healthier, more responsive grow.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Canna","offers":[{"title":"Default Title","offer_id":53715463143751,"sku":"bcs-02372","price":15.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/21_dde147dc-7652-4cbb-970e-816efab752e3.png?v=1760902692"},{"product_id":"ionic-tonic-1-ltr","title":"Ionic Tonic 1 ltr ( Calmag )","description":"\u003cp\u003e\u003cstrong\u003eIonic Tonic\u003c\/strong\u003e is a Cal-Mag supplement from Ionic. It delivers calcium in three forms, including chelated for a rapid dose, with chelated iron to drive chlorophyll production. L form amino acids aid recovery to full health, and seaweed extracts work against stress with natural growth enhancers.\u003c\/p\u003e\u003ch2\u003eKey features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCalcium in three forms, including chelated\u003c\/li\u003e\n\u003cli\u003eChelated iron for chlorophyll production\u003c\/li\u003e\n\u003cli\u003eL form amino acids that aid recovery\u003c\/li\u003e\n\u003cli\u003eSeaweed extracts against stress\u003c\/li\u003e\n\u003cli\u003eUse alongside any base feed\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSizes available\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e1L\u003c\/li\u003e\n\u003cli\u003e5L\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhen to use it\u003c\/h2\u003e\u003cp\u003eAdd it to your feed when your water is soft, when you grow in coco, or when plants show signs of calcium or magnesium shortage. Follow the dose on the label.\u003c\/p\u003e\u003ch2\u003eFAQs\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDoes it work with other brands?\u003c\/strong\u003e\u003cbr\u003eYes, it can be used alongside any base feed.\u003c\/p\u003e\u003cp\u003eSee the full \u003ca href=\"\/collections\/ionic\"\u003eIonic range\u003c\/a\u003e. Available for Click \u0026amp; Collect from our West Bromwich store or UK delivery. Need advice? Call us on 0121 553 7872, WhatsApp our experts or pop in.\u003c\/p\u003e","brand":"Ionic","offers":[{"title":"1 ltr","offer_id":55322333937991,"sku":null,"price":20.0,"currency_code":"GBP","in_stock":true},{"title":"5 ltr","offer_id":55322333970759,"sku":null,"price":65.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/IONIC_Tonic_1L.png?v=1791372411"},{"product_id":"canna-calmag-agent","title":"Canna CalMag Agent","description":"\u003cp\u003e\u003cstrong\u003eCanna CalMag Agent\u003c\/strong\u003e tops up calcium and magnesium, the two nutrients that run short first with soft tap water or RO water. Add it to your feed and stop deficiencies before they show on the leaves.\u003c\/p\u003e\u003ch3\u003eWhy growers use CalMag Agent\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHelps prevent calcium and magnesium deficiencies\u003c\/li\u003e\n\u003cli\u003eIdeal with soft tap water or reverse osmosis water\u003c\/li\u003e\n\u003cli\u003eUse alongside your normal base feed\u003c\/li\u003e\n\u003cli\u003eHandy for correcting a deficiency quickly\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes available\u003c\/h3\u003e\u003cp\u003e1L, 5L or 10L.\u003c\/p\u003e\u003ch3\u003eDo I need it?\u003c\/h3\u003e\u003cp\u003eIf you are on soft water or RO, most feeds need a calcium and magnesium top up. On hard water you may not need it. Add it to the water first, then your base nutrient, and check pH with a \u003ca href=\"\/products\/bluelab-ph-pen-bluelab\"\u003eBluelab pH pen\u003c\/a\u003e. Other options: \u003ca href=\"\/products\/plant-magic-magnecal\"\u003ePlant Magic Magnecal\u003c\/a\u003e and \u003ca href=\"\/products\/mills-calmag\"\u003eMills CalMag\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eFAQs\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eCan I use it with any feed?\u003c\/strong\u003e\u003cbr\u003eYes, it is used alongside your normal base feed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the signs of a deficiency?\u003c\/strong\u003e\u003cbr\u003eRusty spots and weak new growth for calcium, yellowing between the veins on older leaves for magnesium. Bring a leaf in and we will take a look.\u003c\/p\u003e\u003cp\u003eSee the full \u003ca href=\"\/collections\/canna\"\u003eCanna range\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eAvailable for Click \u0026amp; Collect from our West Bromwich store or UK delivery. Need advice? Call us on 0121 553 7872, WhatsApp our experts or pop in.\u003c\/p\u003e","brand":"Canna","offers":[{"title":"1L","offer_id":55628983107911,"sku":"HH-05174","price":12.59,"currency_code":"GBP","in_stock":true},{"title":"5L","offer_id":55628983140679,"sku":"HH-05175","price":36.99,"currency_code":"GBP","in_stock":true},{"title":"10L","offer_id":55628983173447,"sku":"HH-05176","price":52.59,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/331214a8.jpg?v=1793287537"},{"product_id":"plagron-calmag-pro","title":"Plagron CalMag Pro","description":"\u003cp\u003e\u003cstrong\u003ePlagron CalMag Pro\u003c\/strong\u003e raises calcium and magnesium levels, ideal for soft water areas, RO water and fixing deficiencies.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAdds calcium and magnesium\u003c\/li\u003e\n\u003cli\u003eIdeal with soft or RO water\u003c\/li\u003e\n\u003cli\u003eUse alongside your normal feed\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable for Click \u0026amp; Collect from our West Bromwich store or UK delivery. Need advice? Call us on \u003ca href=\"tel:01215537872\"\u003e0121 553 7872\u003c\/a\u003e or pop in.\u003c\/p\u003e","brand":"Plagron","offers":[{"title":"1L","offer_id":55628995461447,"sku":"HH-51761","price":15.59,"currency_code":"GBP","in_stock":true},{"title":"5L","offer_id":55628995494215,"sku":"HH-51762","price":67.19,"currency_code":"GBP","in_stock":true},{"title":"10L","offer_id":55628995526983,"sku":"HH-51763","price":107.19,"currency_code":"GBP","in_stock":true},{"title":"20L","offer_id":55628995559751,"sku":"HH-51764","price":180.29,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/f9379d4c.jpg?v=1793287639"},{"product_id":"biobizz-calmag-organic-calcium-magnesium","title":"BioBizz CalMag Organic Calcium \u0026 Magnesium","description":"\u003cp\u003eBioBizz CalMag is a 100% organic, certified calcium and magnesium supplement. Calcium and magnesium are essential for cell growth and photosynthesis, and deficiencies are common when growing with soft water or RO water.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e100% organic and certified\u003c\/li\u003e\n\u003cli\u003eCorrects calcium and magnesium deficiencies\u003c\/li\u003e\n\u003cli\u003eIdeal for soft water and RO water\u003c\/li\u003e\n\u003cli\u003eFits alongside any BioBizz feeding schedule\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSizes:\u003c\/strong\u003e 500ml, 1L, 5L and 10L.\u003c\/p\u003e","brand":"BioBizz","offers":[{"title":"500ml","offer_id":55738892091719,"sku":"HYN-0743","price":8.49,"currency_code":"GBP","in_stock":true},{"title":"1L","offer_id":55738892124487,"sku":"HYN-0744","price":10.49,"currency_code":"GBP","in_stock":true},{"title":"5L","offer_id":55738892157255,"sku":"HYN-0745","price":52.99,"currency_code":"GBP","in_stock":true},{"title":"10L","offer_id":55738892190023,"sku":"HYN-0746","price":96.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/HYN-0743_e521d85b-0f22-4886-beb6-197876fe0810.jpg?v=1794305883"}],"url":"https:\/\/blackcountrysystems.com\/collections\/calmag.oembed","provider":"Black Country Systems","version":"1.0","type":"link"}