1Adopts sand stone, through high temperature agglomeration, good gas dispersion, good filtering, ozone resistance, corrosion resistance. 2Can increase oxygen content, reduce carbon dioxide and increase acidity alkalinity can produce water flow. 3Important tool for maintaining the respiration process of fish in aquarium. 4The product is durable, reusable and can be washed repeatedly. 5Can be widely used in a variety of places, perfect accessories for aquarium.
