DescriptionAn air pump can transport oxygen to the fish tank and churn the water to make the fish swim to avoid dying from oxygen deficit. This coral shape air pump is not only an air pump but also a fish tank decoration. It looks like real coral and will not produce harmful substance even immersing for a long time.Feature- Color: As shown - Material: Resin - Size: 13x15.5x15.5cm - Made from natural resin, it is sturdy and lightweight. - Odorless, harmless, easy to use. - Good fish tank decoration, good oxygen pumping performance. - Create abundant small bubbles, suitable for aquarium, fish tank and circulation system