Xyclone Mini DC Protein Skimmer 230GPH, Up to 55 GallonsThe 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