Hydro Fuel is a premier 2 part nutrient system containing all primary, secondary and essential micro-nutrients necessary to encourage robust vegetative growth and heavy dense flowers and fruit. Hydro Fuel Grow and Bloom formula can be used in both hydroponics or recirculating systems and soil/soilless run to waste systems. HYDRO FUEL Grow was specifically designed for fast-growing annuals and has proven a winner again and again. Hydro Fuel can be used in hydroponics, aeroponics and soil-less mixes to provide everything your plants need for strong, healthy growth and for the results that you demand.