Aquascape Alkalinity Booster with Phosphate Binder effectively increases overall KH and alkalinity. Aquascape Alkalinity Booster with Phosphate Binder is lab tested, pharmaceutical grade, and disolves completely and easily in pond water, making application simple and easy. A Phosphate binder is added to help water quality issues throughout the year, significantly reducing maintenance throughout the year. The treatment is phosphate and ammonia free and one scoop treats 125 gallons of water. One full container treats 5,000 gallons of water.