Nutrafin Waste Control is a biological water conditioner that contains specific strains of bacteria chosen for their highly effective breakdown of solid organic waste. The result is a cleaner aquarium, providing improved conditions for prompt metabolism of invisible toxic ammonia and nitrite and less aquarium maintenance. Aquariums that feature large species of fish such as goldfish or cichlids; heavily stocked aquariums; planted or heavily decorated aquariums where debris removal is difficult will substantially benefit from Waste Control. Reduces aquarium maintenance. Reduces organic waste. Supports a healthy aquarium environment.