Fluval Biological Enhancer Aquarium Supplement, 67 oz (2.1 qt) Bags Plastic Size Fits Necks (Circumference) Depth

Size Fits Necks (Circumference) Depth X-Small 5½"-9½" 4

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Fluval Biological Enhancer Aquarium Supplement, 67 oz (2.1 qt) Bags Plastic Size Fits Necks (Circumference) DepthFluval Biological Enhancer Aquarium Supplement is a fast acting, powerful army of beneficial bacteria that immediately inoculates aquarium water to create a safe environment for your fish. This all natural product eliminated toxic ammonia and nitrites to maintain a well balanced environment and prevent fish loss. Prevents fish loss Establishes a safe aquarium environment Eliminates ammonia and nitrite Safe for fresh and saltwater Fluval Biological