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Canna CalMag Agent tops up calcium and magnesium, ideal for soft water areas, RO water and correcting deficiencies.
Available for Click & Collect from our West Bromwich store or UK delivery. Need advice? Call us on 0121 553 7872 or pop in.
Not sure which one is right for your setup? Message us on WhatsApp or call 0121 553 7872.
Yes. Every order is sent in plain, unbranded packaging as standard.
Order standard size items by 12pm on a working day and choose Next working day at checkout, and your order will be with you the next working day. Standard delivery takes 2 to 3 working days.
Bulky items such as grow tents, large fans and 50L bags of soil go by courier in 2 to 3 working days, or on a pallet for very heavy orders. Next day is not available for these, and if your basket includes a bulky item the whole order travels with it.
UK delivery is free on orders of £94.99 or more, except for bulky items. See our delivery page for full prices.
Yes. Choose Click & Collect at checkout and pick up for free from our shop at Unit 2 Black Lake, West Bromwich, B70 0PJ. Orders are usually ready within 1 hour.
You have 14 days from receiving your order to tell us you want to cancel, then a further 14 days to send it back. Items need to be unopened and in a resaleable condition.
If you change your mind, the return postage is paid by you. If something arrives faulty or damaged, send us photos within 48 hours and we will cover the cost of putting it right. Full details are in our refund policy.
Yes. If you find the Canna CalMag Agent cheaper at another UK retailer, use the Price Match button on this page. We usually reply within one business day.
Speak to our team. Call us on 0121 553 7872, message us on WhatsApp, or visit the shop in West Bromwich.
