Boyd Enterprises manufactures top quality products, but is world famous for the Chemi-pure product. Originally conceived and formulated for the marine aquarium, CHEMI-PURE has also proven invaluable to the more serious fresh water aquarist who desired the finest and purest water available for fish, such as Discus and African Cichlids, etc., as CHEMI-PURE removes the ammonia and other nitrogenous waste products so harmful to these and other fish.