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You are purchasing a 25 pound bag of 4-18-38 Hydroponic Fertilizer.4-18-38 Fertilize is compatible with most insecticides and fungicides.
Formulated for growing plants without soil, using mineral nutrient solutions in a water solvent.
Stimulates flower production during all stages of bloom.
38 is rich in Potassium, includes Micronutrients and makes a great All Purpose Hydroponic Bloom Formula.