Jack's Professional Hydroponic, 4 lb

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Jack’s Professional Hydro FeED (5-12-26) delivers a comprehensive hydroponic nutrient system in one formula, providing a careful blend of nitrogen, phosphorus and potassium as well as calcium and magnesium. Hydro FeED’s three types of iron chelates keep the mineral available at a wide range of pH values. Low phosphorus content helps prevent stem elongation. Ideal for herbs and other edibles.