Multi-function and free switching A variety of nozzles can be switched Oxygenation filtration -Transparent aeration tube The outlet water is oxygenated in large quantities at the same time, and the trachea must be connected, and the closer the outlet force is to the water surface, the better Surfing buckle -Straight punching fittings It can make the water flow more powerful, directly into the cylinder, can circulate the water flow in the cylinder, improve the built-in filter effect, and replace the function of the wave pump Pumping water -Multi-mouth water change Multi-caliber control socket It can be connected to the water pipe with an inner diameter of 13/16mm, and can be used as a pump, or it can be pumped into other filters, and the front filter is used The inlet valve turns to adjust the inlet volume It should be placed outside the aquarium in contact with the air