Collection: Calmag

Why do coco and hydro growers need cal-mag? Because calcium and magnesium are used up fast and barely supplied by standard base nutrients, especially with soft or RO water — skip it and you'll see yellowing or leaf curl. Shop Canna CalMag Agent, Shogun CalMag, Plagron CalMag Pro, Dutchpro CalMag, plus BioBizz, Mills, Athena and Gold Label options. Coco growers: use it every feed.