Rs Undergravel Aquarium Filter(Biological Filtration for Fresh Water)

Description

Bio ceramic rings are used to keep your bacteria colony to convert ammonia from waste to nitrites and nitrites to nitrates. Bio balls work as a biological filter media and give a home for beneficial bacteria where they can settle and be fed by water and oxygen. They promote gas exchange and increase dissolved oxygen levels. Great for any freshwater or saltwater fish tank or mini-reef aquarium. Fish Tank Filter are simply rinse and use. Diameter of balls: 0.8inch Package Include 1 bag of 100 Bio Balls