Perfect Pond Plus, with a scientifically developed micronutrient package, has been developed by the pros at American Sport fish Hatchery. This granular fertilizer is simply broadcast at a base rate of 5 pounds per acre and is much easier than messy, heavy liquids. Biologic Perfect Pond Plus is formulated from the highest quality water soluble materials that will dissolve in the upper 2 feet of the water column. This state-of-the-art formula encourages an optimum bloom and adds micro nutrients for healthier fish. Use as directed and recommended.