BLOOM CAL: for use in soil, coco, soil-less mixes, rockwool, hydroponics, and aeroponics. This NEW Organic Nutrient Line is quickly moving in, to fill the TOP SPOT of all nutrients available, thus far. Excellent Calcium and Magnesium trace mineral supplement. 100% ORGANIC: High levels of Calcium & Magnesium, EDTA chelated Manganese, Zinc & Copper. Use throughout entire crop cycle. Made with rare ingredients of the highest quality, found only in Australia.