250gram Bio Filter Meterial for Aquarium Turtle Fish Tank Internal Flow Water Clean Pump Filtration Tropical Aquariums Shrimp Amphibian Frog Crab (Bio Material)

【Provide Health environments】:filtering medium provide an anaerobic environment, reducing the content of nitrates in water,Stabilize PH,cultivate beneficial-bacteria with bio-balls and clarify your water naturally. 【Application】:Suitable for all kinds of aquarium filter and fish tank sump,pond filter Canister such as Hang on back filter,top filter and aquarium bottom filter etc. 【Scientific ecological cycle】:Aquarium bio filter is excellent interaction between air and water and gas exchange. Bio-balls media provide a home for beneficial-bacteria where they can promote gas exchange and increase dissolved oxygen levels and form a good ecological cycle. 【Multifunction】:Filter materials helps increase oxygen, adjusting pH, Promote fish metabolism,releasing and absorbing trace elements, effectively water quality improvement,Suitable for Saltwater and freshwater environments. Included Quartz rings, volcanic rocks, medical-stone, coral sand, nanometer bacterial-rings, infrared bacterial-rings, biological-beads, bio ball, infrared microspheres, ceramic rings and red breathing rings.