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 micronutrients 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.