Description: Small Fish Tank Filter: Aquarium Filter, hanging fish tank top external filter quietly delivers clear water flow throughout the aquarium. Suitable for freshwater and saltwater aquariums Easy Installation: USB Fish Tank Filter water purifier, practical fish tank accessory, aquarium water circulation cleaning tool Efficient Water Filtration System: Mini aquarium filter features adjustable flow rates, offers a continuous filtration that ensures your aquarium stays clean environment Quiet Operations: Quiet Compact External Filter is designed for silent operation, this filter efficiently circulates water, addition to any small aquarium setup Easy to Use: Aquarium Filter with filter sponge, to ensure optimal performance, pre-fill the unit with water before use and regularly clean the filter sponge, easy to use and maintain Specification: Material: ABS, Sponge Size Chart: 5cmx6cmx9.5cm/1.97inchx2.36inchx3.74inch, For Glass Thicknesses: 3-5mm or 8cmx7.5cmx10cm/3.15inchx2.95inchx3.94inch, For Glass Thicknesses: within 8mm or 8cmx6.5cmx10cm/3.15inchx2.56inchx3.94inch, For Glass Thicknesses: 3-5mm Package Includes: 1 Aquarium Filter