Big Bud Coco by Advanced Nutrients The Worlds Best Bloom Booster, Now Optimized for Coco Coir Big Bud Coco is designed specifically for use with coco coir to live up to the special flowering demands of coco for growers like you. The addition of Chelated Iron Fe, Calcium Ca and Magnesium Mg alleviate the potential elemental problems commonly seen in this unique growing media because they powerfully deliver these critically essential secondary and micronutrients to your valuable plants at the most crucial time so you get the optimized yields you desire. Put Big Bud Coco to work for you today and start getting bigger more delicious buds in your coco grow room now. Big Bud Coco is specially designed for use with coco coir growing media and continuous liquid-feed growing systems such as aeroponics, drip irrigation and emitters, NFT, flood and drain and deep water culture.