Check the listing for details. Fish Tank Filter Mini Waterfall External Hang On Aquarium Filter USB - 250L/H. Condition: New. Listed at 18.07 USD. Tigerlily Enterprises 2.5W Fish Tank Filter, Mini Waterfall External Hang On Aquarium Filter For Small Nano Fish Tanks. USB Powered With 3-layer Filtration. 250L/H The key to the success of the aquarium is having the perfect filter. This aquarium hang on filter has a powerful & whisper-quiet filter system, which is both safe and durable. It also has an adjustable water flow rate and can easily create a clean, clear and stress-free water environment for your beloved fish. POWERFUL & QUIET OPERATION - 2.5W powerful and energy-saving water pump, working sound ≤35db, can easily move water through the filter cartridge at a rate of 250L/H. DURABLE - High-strength ABS shell, without fear of any external force damage for a longer service life. SAFE - An extra bio-foam at the inlet pipe of the filter, which not only enhances the filtering effect but also prevents small fish from being sucked in. ADJUSTABLE WATER FLOW RATE - Just slightly turn the adjustment knob, you can change the water flow rate as needed. BENEFICIAL OXYGENATION - Unique waterfall flow design, can create beneficial bacteria in your nano tank. All the parts are detachable so easy to clean. Specification-Volume:10L (Suitable for tanks under 10 litres)-Flow Rate: 250L/H-Watt: 2.5W -Power Source: 220V USB Cable (USB power plug required)-Power cable length: **New longer 120cm cable**.-Size: 73*38*130 mm Please Note:-To ensure stability, use the appropriate size gap on the clip to affix the filter to your fish tank. -Before turning on the power, please ensure you add water to the filter, otherwise the filter will not work.-familiarise yourself with the nitrogen cycle and change your water regularly as and when required to maintain the optimum health of your aquarium. A filter removes waste and impurities from your tank. Package Include:1 X Aquarium Filter with USB charging cable