Reap the bud-bulking benefits of Big Bud® — the world’s #1 bloom booster — without risking nutrient imbalances in your coco coir grow. Big Bud® Coco features a precisely dialed-in PK spike to strengthen and bulk floral structures, plus magnesium, two forms of calcium, and diversely chelated forms of iron to prevent nutrient leaching from the grow medium. PK ratio is dialed in for completely compatibility with coco coir Magnesium, calcium, and chelated iron enable your plants to uptake the full range of micronutrients they need to thrive Big Bud® Coco is specially designed for use with diverse hydroponic growing media and all continuous liquid-feed growing systems such as aeroponics, drip irrigation and emitters, NFT, flood and drain, and deep water culture. ATTENTION: Big Bud® Coco is completely compatible with all pH Perfect Base Nutrients as well as with all non pH Perfect Base Nutrients and supplements and all competitors Base Nutrients and supplements. NOTE: At Advanced Nutrients, we do not use paclobutrazol, daminozide, or any other banned plant growth regulators in our products.