FoxFarm's Grow Big Hydroponic Plant Food is a special formulation of the extremely popular Grow Big® Liquid Plant Food specifically for hydroponic plant growing systems.
This is a extremely potent, fast-acting, water soluble fertilizer that promotes lush vegetative growth from the first week of growth through bud set.
FoxFarm adds earthworm castings and Norwegian kelp into this special brew to encourage sturdier, healthier stems and leaves, and they also provide enough nutrients and trace minerals to create the kind of healthy branching that you'll need later in the season for more abundant buds, blooms, and fruits.
For recirculating systems use 2 teaspoons per gallon, for heavy feeding use 3 teaspoons per gallon, and for foliar feeding use 1/2 teaspoon per gallon.
Derived From: Potassium Nitrate, Magnesium Nitrate, Potassium Phosphate, Ammonium Phosphate, Ammonium Nitrate, Calcium Nitrate, Earthworm Castings, Norwegian Kelp, Iron EDTA, Manganese EDTA, Zinc EDTA, Copper EDTA, Chelating Agent, Disodium Ethylenediamine Tetra Acetate (EDTA), Sodium Borate, and Sodium Molybdate.