{"title":"pH Up and pH Down","description":"\u003cp\u003epH Up and pH Down let you bring your nutrient solution into the right range before you feed. Plants can only take up all the nutrients you give them when the pH is right, so a quick check and a small adjustment every time you mix a feed is one of the easiest wins in the grow room.\u003c\/p\u003e\n\u003cp\u003eWe stock pH Down and pH Up from Growth Technology, Mills and Essentials LAB, an organic citric acid pH Down from Plagron, and Athena Balance, a pH regulator that buffers your water before nutrients go in. All work in hydro, coco and soil feeds.\u003c\/p\u003e\n\u003cp\u003eWhichever you choose, add a little at a time, stir and test again with a calibrated pH meter.\u003c\/p\u003e\n\u003ch2\u003eHow to choose pH Up or pH Down\u003c\/h2\u003e\n\u003cp\u003eTest your mixed feed first. If the reading is too high, you need pH Down. If it is too low, you need pH Up. Most growers keep a bottle of each on the shelf.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eWhat it does\u003c\/th\u003e\n\u003cth\u003eKey fact from the maker\u003c\/th\u003e\n\u003cth\u003eSizes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/growth-technology-ph-down\"\u003eGrowth Technology pH Down\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eLowers pH\u003c\/td\u003e\n\u003ctd\u003eConcentrated, so a small bottle goes a long way\u003c\/td\u003e\n\u003ctd\u003e250ml, 1L or 5L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/growth-technology-ph-up\"\u003eGrowth Technology pH Up\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eRaises pH\u003c\/td\u003e\n\u003ctd\u003eEasy to dose a little at a time\u003c\/td\u003e\n\u003ctd\u003e250ml or 1L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/mills-ph-ph-1l\"\u003eMills pH Down\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eLowers pH\u003c\/td\u003e\n\u003ctd\u003eConcentrated liquid for hydro, coco and soil feeds\u003c\/td\u003e\n\u003ctd\u003e1L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/mills-ph-1l\"\u003eMills pH Up\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eRaises pH\u003c\/td\u003e\n\u003ctd\u003eConcentrated liquid for hydro, coco and soil feeds\u003c\/td\u003e\n\u003ctd\u003e1L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/essentials-lab-ph-down\"\u003eEssentials LAB pH Down 30%\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eLowers pH\u003c\/td\u003e\n\u003ctd\u003e30% phosphoric acid: small doses adjust large volumes\u003c\/td\u003e\n\u003ctd\u003e250ml or 1L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/essentials-lab-ph-up\"\u003eEssentials LAB pH Up\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eRaises pH\u003c\/td\u003e\n\u003ctd\u003e50% potassium hydroxide: small doses adjust large volumes\u003c\/td\u003e\n\u003ctd\u003e250ml or 1L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/plagron-lemon-kick\"\u003ePlagron Lemon Kick\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eLowers pH\u003c\/td\u003e\n\u003ctd\u003eOrganic pH Down made with citric acid, kind to beneficial soil life\u003c\/td\u003e\n\u003ctd\u003e1L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/athena-balance-ph-regulator\"\u003eAthena Balance\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eRegulates and buffers pH\u003c\/td\u003e\n\u003ctd\u003ePotassium silicate based, added to plain water before nutrients\u003c\/td\u003e\n\u003ctd\u003eSee product page\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eBigger reservoirs:\u003c\/strong\u003e the Essentials LAB pair are highly concentrated, so small doses adjust large volumes. \u003cstrong\u003eOrganic soil growers:\u003c\/strong\u003e Plagron Lemon Kick uses citric acid. \u003cstrong\u003eRO or very soft water:\u003c\/strong\u003e Athena says Balance is especially useful with RO water, stabilising your water before you add feed.\u003c\/p\u003e\n\u003ch2\u003epH Up and pH Down FAQs\u003c\/h2\u003e\n\u003ch3\u003eWhat pH should my nutrient solution be?\u003c\/h3\u003e\n\u003cp\u003eMills recommends 5.5 to 6.5 for most plants, and Plagron says Lemon Kick brings pH down to the ideal 5.5 to 6.5 range. Always follow the guidance from your nutrient maker.\u003c\/p\u003e\n\u003ch3\u003eDo I add pH Up or pH Down before or after nutrients?\u003c\/h3\u003e\n\u003cp\u003eAfter. Growth Technology advises mixing your nutrients first, then adding pH Up or pH Down a few drops at a time. Athena Balance is the exception: Athena says to add it to plain water before any nutrients or additives.\u003c\/p\u003e\n\u003ch3\u003eHow much pH Down or pH Up should I add?\u003c\/h3\u003e\n\u003cp\u003eIt depends on your water and your feed, so there is no fixed amount. The makers advise starting with small doses, mixing thoroughly and testing again to avoid over correction.\u003c\/p\u003e\n\u003ch3\u003eDo I need a pH meter?\u003c\/h3\u003e\n\u003cp\u003eYes. Check every feed with a calibrated pH meter such as the \u003ca href=\"\/products\/bluelab-ph-pen-bluelab\"\u003eBluelab pH Pen\u003c\/a\u003e, and calibrate it regularly with \u003ca href=\"\/products\/growth-technology-ph-buffer-solution\"\u003epH buffer solution\u003c\/a\u003e. See all our \u003ca href=\"\/collections\/meters-and-testers\"\u003epH meters and testers\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eAre pH adjusters safe to handle?\u003c\/h3\u003e\n\u003cp\u003eThey are concentrated, so handle them with care. Growth Technology advises wearing gloves and eye protection when handling. Always read the label before use.\u003c\/p\u003e\n\u003cp\u003eNew to feeding? Our guide on \u003ca href=\"\/blogs\/news\/how-to-read-a-nutrient-feed-chart\"\u003ehow to read a nutrient feed chart\u003c\/a\u003e explains EC and pH targets, and you can browse our \u003ca href=\"\/collections\/base-nutrients\"\u003ebase nutrients\u003c\/a\u003e to go with your pH kit. 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\u003cp\u003eNeed advice? Visit our West Bromwich store, call 0121 553 7872 or WhatsApp our experts.\u003c\/p\u003e","products":[{"product_id":"mills-ph-ph-1l","title":"Mills pH- (pH Down) Adjuster 1L","description":"\u003cp\u003eMaintain perfect pH levels in your nutrient solution with Mills pH- 1L, a high-quality pH adjuster designed for hydroponic, coco and soil-based systems. By keeping pH within the ideal range, Mills pH- ensures your plants can absorb essential nutrients efficiently, promoting stronger growth, healthier foliage and higher yields.\u003c\/p\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eRead the full product overview here...\u003c\/summary\u003e\n\n  \u003cp\u003eMills pH- is a concentrated liquid solution formulated for precise pH reduction in nutrient water. Controlling pH is critical in indoor growing, as fluctuations can cause nutrient lockout, poor plant development, or reduced flowering. Mills pH- provides a reliable and easy-to-use method for keeping nutrient solutions within the optimal pH range of 5.5 to 6.5 for most grow mediums.\u003c\/p\u003e\n\n  \u003cp\u003eSuitable for use with all water types and compatible with your standard nutrient program, this pH adjuster is an essential tool for growers seeking consistent results and healthy plants.\u003c\/p\u003e\n\n  \u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePrecise pH Control: Easily lowers pH in hydroponic, coco, or soil nutrient solutions.\u003c\/li\u003e\n    \u003cli\u003eConcentrated Formula: Requires only a small amount for effective adjustment.\u003c\/li\u003e\n    \u003cli\u003eEnhances Nutrient Uptake: Helps plants absorb essential nutrients efficiently.\u003c\/li\u003e\n    \u003cli\u003eSafe \u0026amp; Compatible: Works with all nutrient programs and water types.\u003c\/li\u003e\n    \u003cli\u003eEasy to Use: Simple to mix and measure for consistent results.\u003c\/li\u003e\n    \u003cli\u003eReliable for All Grow Mediums: Ideal for hydroponics, coco coir and soil cultivation.\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\u003eAdd gradually: Mix small amounts into your nutrient solution while monitoring pH.\u003c\/li\u003e\n    \u003cli\u003eMeasure pH: Use a calibrated pH meter for accurate adjustments.\u003c\/li\u003e\n    \u003cli\u003eTarget Range: Maintain 5.5 to 6.5 for most plants, adjusting depending on specific crop requirements.\u003c\/li\u003e\n    \u003cli\u003eMix thoroughly: Ensure uniform distribution before applying to your plants.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n  \u003cp\u003eWhen should I use Mills pH-?\u003cbr\u003e\n  Apply whenever your nutrient solution is outside the optimal pH range, typically before each feeding.\u003c\/p\u003e\n\n  \u003cp\u003eCan it be used in soil, coco and hydroponics?\u003cbr\u003e\n  Yes, Mills pH- is compatible with all common grow mediums.\u003c\/p\u003e\n\n  \u003cp\u003eHow much should I add?\u003cbr\u003e\n  Start with small doses and gradually adjust, testing pH frequently to avoid over-correction.\u003c\/p\u003e\n\n  \u003cp\u003eIs it safe to mix with nutrients?\u003cbr\u003e\n  Yes, it is designed to work safely alongside all standard nutrient programs.\u003c\/p\u003e\n\n  \u003cp\u003eMaintaining correct pH is critical for nutrient availability. Even minor deviations can lead to deficiencies, poor growth, or reduced flowering. Mills pH- 1L provides an easy, reliable solution to keep your nutrient solution in the optimal range, ensuring plants absorb nutrients efficiently, develop strong roots and foliage and achieve maximum yield potential. It’s an essential tool for any grower seeking consistent, high-quality results.\u003c\/p\u003e\n\u003c\/details\u003e\n","brand":"Mills","offers":[{"title":"Default Title","offer_id":52583436616007,"sku":"bcs-0327","price":13.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/29.png?v=1761844080"},{"product_id":"athena-balance-ph-regulator","title":"Athena Balance PH Regulator","description":"\u003cp\u003eGive your nutrient solution a stable, plant-ready foundation with Athena Balance pH Regulator, a high-quality, potassium silicate-based formula designed to buffer irrigation water, regulate pH and support healthier plant growth across hydroponic, coco and soil systems.\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\u003eAthena Balance pH Regulator creates a consistent, balanced nutrient solution by stabilising pH and improving nutrient availability throughout the grow cycle. Whether using reverse osmosis (RO) water, municipal supply or well water, it helps prevent unstable water chemistry and nutrient lock-out, resulting in stronger, healthier plants.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003epH Stabilisation \u0026amp; Buffering: Regulates and buffers water or nutrient solution pH, reducing the need for constant manual adjustment after mixing nutrients\u003c\/li\u003e\n\u003cli\u003ePotassium Silicate Enriched: Buffers pH while delivering silica to strengthen cell walls, support strong stem structure and improve stress resistance\u003c\/li\u003e\n\u003cli\u003ePrevents Nutrient Lock-Out: Helps keep nutrient solutions homogeneous so essential elements such as calcium, magnesium and phosphorus remain available to plants\u003c\/li\u003e\n\u003cli\u003eVersatile Across Growing Media: Compatible with hydroponics, coco coir, rockwool and soil-based growing systems\u003c\/li\u003e\n\u003cli\u003eSupports Plant Health \u0026amp; Stress Resistance: Silicon improves structural strength and overall plant vigour under environmental stress\u003c\/li\u003e\n\u003cli\u003eSediment-Free \u0026amp; Doser-Friendly: Clean, sediment-free formula suitable for mechanical dosing systems such as Dosatron (not recommended for some electronic dosers)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\nAdd Athena Balance to clean water before any nutrients or additives, especially when using RO or very soft water\u003cbr\u003e\nUse approximately 0.25 to 1 ml per litre of water, depending on water hardness and required pH correction\u003cbr\u003e\nMix thoroughly until the solution is fully homogeneous before adding other nutrients\u003cbr\u003e\nCheck pH with a calibrated meter and adjust further if required\u003cbr\u003e\nSuitable for all growth stages, from seedlings and clones through vegetative and flowering phases\n\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\n\u003cstrong\u003eWhy should I use a pH regulator like Athena Balance instead of standard pH Up\/Down?\u003c\/strong\u003e\u003cbr\u003e\nAthena Balance not only adjusts pH but stabilises water chemistry, particularly useful with RO or low-mineral water. This helps prevent nutrient lock-out while providing potassium silicate to strengthen plant structure and improve stress resistance.\u003cbr\u003e\u003cbr\u003e\n\n\u003cstrong\u003eIs this suitable for hydroponic systems?\u003c\/strong\u003e\u003cbr\u003e\nYes, Athena Balance works across hydroponic, coco, rockwool and soil systems, creating a stable nutrient solution regardless of growing medium.\u003cbr\u003e\u003cbr\u003e\n\n\u003cstrong\u003eWhen should I add Athena Balance?\u003c\/strong\u003e\u003cbr\u003e\nAlways add Athena Balance first to plain water before mixing in any nutrients or additives. Mix thoroughly before proceeding with your feeding schedule.\u003cbr\u003e\u003cbr\u003e\n\n\u003cstrong\u003eWill Athena Balance affect my nutrient schedule or other additives?\u003c\/strong\u003e\u003cbr\u003e\nNo. Athena Balance is compatible with most nutrient lines and additives when used as directed, provided it is not combined with another potassium silicate product.\u003cbr\u003e\u003cbr\u003e\n\n\u003cstrong\u003eCan I use it with reverse osmosis (RO) water?\u003c\/strong\u003e\u003cbr\u003e\nYes. Athena Balance is especially beneficial with RO or very soft water, buffering and stabilising water chemistry to create a reliable base for nutrient solutions.\u003cbr\u003e\u003cbr\u003e\n\nAthena Balance pH Regulator goes beyond simple pH correction by transforming water into a stable, plant-ready base that optimises nutrient availability and supports stronger, healthier growth. Ideal for hobby gardeners and professional growers alike, it removes the guesswork from feeding and helps plants thrive in a consistent, balanced environment.\n\u003c\/details\u003e\n","brand":"Athena","offers":[{"title":"1L","offer_id":52584180318535,"sku":"bcs-0228","price":16.99,"currency_code":"GBP","in_stock":true},{"title":"4L","offer_id":52584180351303,"sku":"bcs-0229","price":38.99,"currency_code":"GBP","in_stock":true},{"title":"19L","offer_id":52584180384071,"sku":"bcs-0230","price":167.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/SIL_32_F_A02.002.webp?v=1778758009"},{"product_id":"mills-ph-1l","title":"Mills pH+ (pH Up) Adjuster 1L","description":"\u003cp\u003eMaintain perfect pH levels in your nutrient solution with Mills pH+ 1L, a high-quality pH adjuster designed for hydroponic, coco and soil-based systems. By keeping pH within the ideal range, Mills pH ensures your plants can absorb essential nutrients efficiently, promoting stronger growth, healthier foliage and higher yields.\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 pH+ is a concentrated liquid solution formulated for a precise pH increase in nutrient water. Controlling pH is crucial in indoor growing, as fluctuations can lead to nutrient lockout, poor plant development, or reduced flowering. Mills pH+ provides a reliable and easy-to-use method for keeping nutrient solutions within the optimal pH range of 5.5 to 6.5 for most grow mediums.\u003c\/p\u003e\n\u003cp\u003eSuitable for use with all water types and compatible with your standard nutrient program, this pH adjuster is an essential tool for growers seeking consistent results and healthy plants.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrecise pH Control: Easily raises pH in hydroponic, coco, or soil nutrient solutions.\u003c\/li\u003e\n\u003cli\u003eConcentrated Formula: Requires only a small amount for effective adjustment.\u003c\/li\u003e\n\u003cli\u003eEnhances Nutrient Uptake: Helps plants absorb essential nutrients efficiently.\u003c\/li\u003e\n\u003cli\u003eSafe \u0026amp; Compatible: Works with all nutrient programs and water types.\u003c\/li\u003e\n\u003cli\u003eEasy to Use: Simple to mix and measure for consistent results.\u003c\/li\u003e\n\u003cli\u003eReliable for All Grow Mediums: Ideal for hydroponics, coco coir and soil cultivation.\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\u003eAdd Gradually: Mix small amounts into your nutrient solution while monitoring pH.\u003c\/li\u003e\n\u003cli\u003eMeasure pH: Use a calibrated pH meter for accurate adjustments.\u003c\/li\u003e\n\u003cli\u003eTarget Range: Maintain 5.5 to 6.5 for most plants. Adjust depending on specific crop requirements.\u003c\/li\u003e\n\u003cli\u003eMix Thoroughly: Ensure uniform distribution before applying to your plants.\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 pH?\u003c\/strong\u003e\u003cbr\u003eApply whenever your nutrient solution is outside the optimal pH range, typically before each feeding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used in soil, coco and hydroponics?\u003c\/strong\u003e\u003cbr\u003eYes, Mills pH is compatible with all common grow mediums.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much should I add?\u003c\/strong\u003e\u003cbr\u003eStart with small doses and gradually adjust, testing pH frequently to avoid over-correction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it safe to mix with nutrients?\u003c\/strong\u003e\u003cbr\u003eYes, designed to work safely alongside all standard nutrient programs.\u003c\/p\u003e\n\u003cp\u003eMaintaining correct pH is critical for nutrient availability. Even minor deviations can lead to deficiencies, poor growth, or reduced flowering. Mills pH 1L provides an easy, reliable solution to keep your nutrient solution in the optimal range, ensuring plants absorb nutrients efficiently, develop strong roots and foliage and achieve maximum yield potential. It’s an essential tool for any grower seeking consistent, high-quality results.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Mills","offers":[{"title":"Default Title","offer_id":52652156813639,"sku":"bcs-0068","price":14.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/download_70.png?v=1761844338"},{"product_id":"growth-technology-ph-down","title":"Growth Technology pH Down","description":"\u003cp\u003e\u003cstrong\u003eGrowth Technology pH Down\u003c\/strong\u003e brings the pH of your nutrient solution back into range fast. It is concentrated, so a small bottle goes a long way: add a little, mix well and re-test before adding more.\u003c\/p\u003e\u003ch3\u003eWhy growers use it\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eLowers pH in hydro, coco and soil feeds\u003c\/li\u003e\n\u003cli\u003eConcentrated: a small bottle goes a long way\u003c\/li\u003e\n\u003cli\u003ePart of the trusted Growth Technology range\u003c\/li\u003e\n\u003cli\u003eEasy to dose a little at a time\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes available\u003c\/h3\u003e\u003cp\u003e250ml, 1L or 5L.\u003c\/p\u003e\u003ch3\u003eHow to use it\u003c\/h3\u003e\u003cp\u003eMix your nutrients first, then add pH Down a few drops at a time, stir and re-test with a \u003ca href=\"\/products\/bluelab-ph-pen-bluelab\"\u003eBluelab pH pen\u003c\/a\u003e. Calibrate your meter with \u003ca href=\"\/products\/growth-technology-ph-buffer-solution\"\u003eGrowth Technology pH buffer\u003c\/a\u003e. Wear gloves and eye protection when handling.\u003c\/p\u003e\u003ch3\u003eFAQs\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDoes it work in soil and coco?\u003c\/strong\u003e\u003cbr\u003eYes, hydro, coco and soil feeds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it strong?\u003c\/strong\u003e\u003cbr\u003eIt is concentrated, so add a little at a time and re-test.\u003c\/p\u003e\u003cp\u003eNeed to raise pH? See \u003ca href=\"\/products\/growth-technology-ph-up\"\u003eGrowth Technology pH Up\u003c\/a\u003e, or browse \u003ca href=\"\/collections\/meters-and-testers\"\u003emeters and testers\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":"Growth Technology","offers":[{"title":"250ml","offer_id":55576691638599,"sku":"bcs-gt-ph-down-250ml","price":5.89,"currency_code":"GBP","in_stock":true},{"title":"1L","offer_id":55576691671367,"sku":"bcs-gt-ph-down-1l","price":14.49,"currency_code":"GBP","in_stock":true},{"title":"5L","offer_id":55576691704135,"sku":"bcs-gt-ph-down-5l","price":54.89,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/HYN-0465_-_1.jpg?v=1793713429"},{"product_id":"growth-technology-ph-up","title":"Growth Technology pH Up","description":"\u003cp\u003e\u003cstrong\u003eGrowth Technology pH Up\u003c\/strong\u003e raises the pH of your nutrient solution when it is too acidic. Add a little at a time, mix and re-test, and your feed is back in the sweet spot.\u003c\/p\u003e\u003ch3\u003eWhy growers use it\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRaises pH in hydro, coco and soil feeds\u003c\/li\u003e\n\u003cli\u003eEasy to dose a little at a time\u003c\/li\u003e\n\u003cli\u003ePart of the trusted Growth Technology range\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes available\u003c\/h3\u003e\u003cp\u003e250ml or 1L.\u003c\/p\u003e\u003ch3\u003eHow to use it\u003c\/h3\u003e\u003cp\u003eMix your nutrients first, then add pH Up a few drops at a time, stir and re-test with a \u003ca href=\"\/products\/bluelab-ph-pen-bluelab\"\u003eBluelab pH pen\u003c\/a\u003e. Wear gloves and eye protection when handling.\u003c\/p\u003e\u003ch3\u003eFAQs\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhen do I need pH Up?\u003c\/strong\u003e\u003cbr\u003eWhen your feed tests too acidic after mixing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it work in soil and coco?\u003c\/strong\u003e\u003cbr\u003eYes, hydro, coco and soil feeds.\u003c\/p\u003e\u003cp\u003eNeed to lower pH? See \u003ca href=\"\/products\/growth-technology-ph-down\"\u003eGrowth Technology pH Down\u003c\/a\u003e, or browse \u003ca href=\"\/collections\/meters-and-testers\"\u003emeters and testers\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":"Growth Technology","offers":[{"title":"250ml","offer_id":55576691802439,"sku":"bcs-gt-ph-up-250ml","price":4.79,"currency_code":"GBP","in_stock":true},{"title":"1L","offer_id":55576691835207,"sku":"bcs-gt-ph-up-1l","price":9.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/3ff3dcf8.jpg?v=1793028133"},{"product_id":"essentials-lab-ph-down","title":"Essentials LAB pH Down 30%","description":"\u003cp\u003e\u003cstrong\u003eEssentials LAB pH Down\u003c\/strong\u003e is a concentrated 30% phosphoric acid that lowers the pH of your nutrient solution. Because it is so strong, small doses adjust large volumes, so it lasts.\u003c\/p\u003e\u003ch3\u003eWhy growers use it\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e30% phosphoric acid\u003c\/li\u003e\n\u003cli\u003eHighly concentrated: small doses adjust large volumes\u003c\/li\u003e\n\u003cli\u003eGreat value for bigger reservoirs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes available\u003c\/h3\u003e\u003cp\u003e250ml or 1L.\u003c\/p\u003e\u003ch3\u003eHow to use it\u003c\/h3\u003e\u003cp\u003eAdd a little to your mixed feed, stir well, then check with a calibrated pH meter such as the \u003ca href=\"\/products\/bluelab-ph-pen-bluelab\"\u003eBluelab pH pen\u003c\/a\u003e. Calibrate with \u003ca href=\"\/products\/essentials-lab-ph-buffer\"\u003eEssentials LAB pH buffer\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eFAQs\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eHow strong is it?\u003c\/strong\u003e\u003cbr\u003e30% phosphoric acid, so small doses go a long way.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need a pH meter?\u003c\/strong\u003e\u003cbr\u003eYes, check with a calibrated pH meter after mixing.\u003c\/p\u003e\u003cp\u003eNeed to raise pH? See \u003ca href=\"\/products\/essentials-lab-ph-up\"\u003eEssentials LAB pH Up\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":"Essentials","offers":[{"title":"250ml","offer_id":55628038996295,"sku":"EL-PHM3-250ML","price":6.29,"currency_code":"GBP","in_stock":false},{"title":"1L","offer_id":55628039029063,"sku":"EL-PHM3-1L","price":13.09,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/ndydsqhd1u1.jpg?v=1793285919"},{"product_id":"essentials-lab-ph-up","title":"Essentials LAB pH Up","description":"\u003cp\u003e\u003cstrong\u003eEssentials LAB pH Up\u003c\/strong\u003e is a concentrated alkaline solution of 50% potassium hydroxide that raises the pH of your nutrient solution. Small doses adjust large volumes, so a bottle goes a long way.\u003c\/p\u003e\u003ch3\u003eWhy growers use it\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e50% potassium hydroxide\u003c\/li\u003e\n\u003cli\u003eHighly concentrated: small doses adjust large volumes\u003c\/li\u003e\n\u003cli\u003eGreat value for bigger reservoirs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes available\u003c\/h3\u003e\u003cp\u003e250ml or 1L.\u003c\/p\u003e\u003ch3\u003eHow to use it\u003c\/h3\u003e\u003cp\u003eAdd a little to your mixed feed, stir well, then check with a calibrated pH meter such as the \u003ca href=\"\/products\/bluelab-ph-pen-bluelab\"\u003eBluelab pH pen\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eFAQs\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eHow strong is it?\u003c\/strong\u003e\u003cbr\u003e50% potassium hydroxide, so add small doses.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need a pH meter?\u003c\/strong\u003e\u003cbr\u003eYes, check with a calibrated pH meter after mixing.\u003c\/p\u003e\u003cp\u003eNeed to lower pH? See \u003ca href=\"\/products\/essentials-lab-ph-down\"\u003eEssentials LAB pH Down\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":"Essentials","offers":[{"title":"250ml","offer_id":55628039061831,"sku":"EL-PHP-250ML","price":4.79,"currency_code":"GBP","in_stock":true},{"title":"1L","offer_id":55628039094599,"sku":"EL-PHP-1L","price":10.19,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/0qpg4xeqjy4.jpg?v=1793285920"},{"product_id":"plagron-lemon-kick","title":"Plagron Lemon Kick pH Down 1L","description":"\u003cp\u003e\u003cstrong\u003ePlagron Lemon Kick\u003c\/strong\u003e is an organic pH down made with citric acid, bringing pH down to the ideal 5.5-6.5 range.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOrganic citric acid pH down\u003c\/li\u003e\n\u003cli\u003eKind to beneficial soil life\u003c\/li\u003e\n\u003cli\u003e1 litre\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":"Default Title","offer_id":55629003653447,"sku":"HH-51757","price":12.59,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/67cb47e7.jpg?v=1793287690"}],"url":"https:\/\/blackcountrysystems.com\/collections\/ph-up-and-down.oembed","provider":"Black Country Systems","version":"1.0","type":"link"}