![Botanicare Cal-Mag Plus Gallon (4/Cs)](http://www.gardening-indoor.com/cdn/shop/products/732115-01_{width}x.jpg?v=1557850600)
Botanicare Cal-Mag Plus Gallon (4/Cs)
Cal-Mag Plus is a highly fortified calcium, magnesium and iron plant supplement formulated to correct common deficiencies. Supplementing your preferred nutrient program with Cal-Mag Plus is strongly recommended when using reverse osmosis water and when growing in coco coir-based medias to compensate for natural calcium draw. Cal-Mag Plus can also be applied as a foliar spray to further enhance growth.