Jack's Professional 16-4-17 Hydroponics Water Soluble Plant Food Fertilizer Feed, 25 Pounds

Features a 16-4-17 formulation - Low phosphorus levels help prevent excessive elongation Designed to work in Hydroponic continuous liquid feed programs Contains approximately 25lbs of hydroponic fertilizer Helps to product better roots, green leaves, and rapid growth Promotes vigorous plant growth and greater yield through a proprietary blend of iron chelates that keeps iron available even as the pH varies (up to a high of 8.0)