WEIWEISTORE Auto Start Hang on Back Aquarium Adjustable Quiet Fish Tank Hob for Freshwater Accs Fluidized Aquarium Filter  (Mechanical Filtration for Fresh Water)

Water Circulation: The filtered water back into the tank in the form of a mini waterfall with the sound of a trickle, which helps an outflow that maximizes water agitation and oxygenation Adjustable : Water with an adjustable pump for optimal fish tank health Tips: It is to clean or replace the or other materials , because excessive impurities will to umsmooth filtration, which will cause the problem of water overflow Efficient Water Circulation: Enhanced water with a waterfall type pump for optimal oxygenation and filtration Convenience: Effortlessly hang this on your aquarium's back, offering a sleek, space saving design