【Multifunctional Aquarium Filter】: Our aquarium filter has four main functions: pumping, oxygenation, filtering and circulation. The aquarium pump can therefore be used in freshwater and seawater. This filter can therefore effectively remove pollutants in the aquarium and create a healthier environment for organisms in the water. 【Adjustable Water Flow】: The maximum flow rate of this aquarium internal filter can reach 300L/h, which is very suitable for the 60L aquarium type there is a unique design that can regulate the water flow through the inlet pipe on the side of the aquarium internal filter, thus supplying the aquarium with water oxygen. 【Two Modes of Use】: The aquarium pump There are two ways of using: you can increase the oxygen content through the inlet pipe and nozzle, or use the rain connection pipe to improve the filtering effect and make the water filter more appropriate. When the water level is low, the filter can be laid on its side underwater so that it can be used in