Nutrafin Cycle Biological Filter Supplement, 4.1-Ounce

Nutrafin Cycle Biological Aquarium Supplement immediately establishes a safe biological aquarium environment for your fish. The Nutrafin Cycle Biological Aquarium Supplement features a new high concentration formula that reduces fish loss and establishes essential conditions in new aquarium set-ups. Regular application of Nutrafin Cycle Biological Aquarium Supplement helps to competitively exclude the establishment of undesirable bacteria in aquariums. The Nutrafin Cycle Biological Aquarium Supplement offers up to date high quality production processes for pure bacterial consortium free of undesirable species.