F4W Cal-Mag is specifically formulated with the optimum ratio of Calcium, Magnesium and Iron to achieve the the highest yield both in hydroponics and soil growing. This is vital to optimise nutrition in fast growing plants.
Cal-Mag prevents secondary nutrient deficiencies, supports growth and fruiting, and prevents blossom end rot and tip-burn.
Cal-Mag is also used to buffer coco peat.
10 in stock