Leaves, pollen or other algae nutrients get into pond water via the surface. OASE skimmers powerfully and effectively pull this debris from the surface into the collection basket. Thus the debris is removed from the pond eco-system before it stresses the pond. The result is clearly improved water quality and viewing depth through a reduced nutrient balance. Suitable for ponds with a surface of up to 25 m2. Powerful drive thanks to 2500 litre circulation pump. Including an injector that enriches the pond with oxygen. Fine foam for mechanical/biological filtration. Ice preventor function through water movement. Easy maintenance thanks to removable collection basket. Automatically adjusts to any water level.