Characteristics Easy detachable for breezy maintenance. Duckbill Big Outlet, 360° Rotatable for Any Flow Angle. Thickened Rubber Foot, Strongly Attached To the Tank Wall. Anti-Air Lift Working Mode, Real Gentle Filtration, Suitable for Fish or Shrimp Baby Incubation Tank. Enlarged Filter Chamber, DIY Filter Medias, Improve Filtration Effect. Air pump’s soulmate, Filtration, Cultivation, Water Purification all in one. Function Of Products We have two versions of Power Filter, electric one is driven by water pump (all in one), while air one is driven by air pump(which is not included). Make sure the water level is always higher than the whole sponge filter before it can work properly. Enlarged filter chamber for you to put in different filter media. Only sponge is included in. Easy detachable for breezy maintenance.