The Fox Farm Nutrient Trio has everything you need! This trio is specifically designed for hydroponic gardens! The three-pack of high quality liquid fertilizers contains: Big Bloom, Grow Big®, and Tiger Bloom®, together at last. Fox Farm has designed this set to be used together! First, start with Grow Big® for abundant green growth then switch to Tiger Bloom® at the first sign of bud set or flowering. You can also use Big Bloom throughout all growing cycles to heal root systems and increase nutrient cycling. Ideal for mature, late-season flowers and fruit.