Aquascape® 96027 1.1 lb Alkalinity Booster with Phosphate Binder. Aquascape Alkalinity Booster with Phosphate Binder effectively increases overall KH and alkalinity. Aquascape Alkalinity Booster with Phosphate Binder is lab tested, pharmaceutical grade, and dissolves 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. The treatment is phosphate and ammonia free.