Pure Blend(TM) Pro Hydro Bloom is a one part, stand alone organic fruit and flower formula for hydroponics. It is a special blend of organic and natural sources of the essential major, secondary and trace minerals in 100% soluble form. It produces superior fruits, flowers, and vegetables. Cultivating fruiting and flowering plants in hydroponics requires that phosphorous levels be lower than potassium and nitrogen. A healthy alternative, Pure Blend(TM) Pro Bloom formula increases nutritional value in fruits and vegetables.