Just for hydro gardeners. Here's a convenient three-pack of our top liquid fertilizers for hydroponics: Big Bloom, Grow Big Hydroponic, and Tiger Bloom. Use them in sequence for brilliant blooms and luscious fruit all season long. Start with Grow Big Hydro for abundant green growth. Switch to Tiger Bloom at the first sign of bud set or flowering. Use Big Bloom throughout all growing cycles to heal root systems and increase nutrient cycling. Ideal for mature, late-season flowers and fruit.