A perfect cleaning filter pump for your medium or small sized fish tank, convenient for washing, total mute effect has a biochemical filter plates with carbon. For both fresh water and sea water. Flow can be adjusted according to need. Impeller must be put into water completely to avoid equipment burn away. Water inlet, depth in water and gradient can be adjusted. The flow can be adjusted according to the need using the switch. Mute effect. Bio chemical filter. Convenient for washing. Easy to Handle