FoxFarm Tiger Bloom is an ultra potent, fast acting, high phosphorus fertilizer that also contains a good supply of nitrogen for growth and vigor. It is formulated with a low pH to maintain stability in storage and keep micro-nutrients available. Tiger Bloom can be used for both hydroponic and soil applications. When used as directed Tiger Bloom encourages abundant fruit, flower, and multiple bud development. Use Tiger Bloom at the first signs of flowering through harvest.