& nbsp; 【Simple Assembly】 First step: attach the air hose to the two connectors of the check valve. Second step: one connector connects the mini air pump and the other connects the air stone. Do not take a few minutes. & nbsp; 【Various Applications】 The mini air pump can be used for all air operated aquarium accessories, such as bubble stones, bubble decorations and small sponge filters. It can also be used for freshwater and seawater. 【Low Consumption】 The energy-saving mini air pump consumes only 1 watt during operation. Most importantly, you can pay little money and get various features. A first-class air pump for all betta and marine aquariums up to. & nbsp; 【High Air Flow】 The maximum flow rate of the oxygen pump aerator can reach. You can use small sponge filters and large air stones. Properly ventilate the aquarium, give your pet fish more movement water and better oxygen exchange.