The AQUATOP Xyclone Mini DC Protein Skimmer is capable of filtering 79 gallons per hour, making it suitable for moderately stocked aquariums up to 55-gallons. This powerful protein skimmer will help to clean your aquarium water by performing foam fractionation, a process that removes dissolved organic waste from your aquarium water before the waste can enter the nitrogen cycle. The flexible design allows for a hang-on tank application or in-sump installation, and includes a needle-wheel impeller, removable collection cup, and a submersible pump. The DC 12-volt pump operates on just 4.3-watts.