Aquarium Filter, Hang On Back Aquarium External Filter for Small Tank

• 【5-in-1 Multifunctional Filtration】This small fish tank filter features a hang on back filter aquarium design, combining debris filtration, oxygen aeration, beneficial bacteria cultivation, silent operation and low energy consumption – an all-in-one solution for small tank water quality.
• 【High Flow Rate & Ultra-Low Energy Use】Its compact size (6.5×6.5×15cm), Suitable for glass tanks with a thickness of 3 mm or 5 mm. As an external fish tank filter, it delivers 250L/h circulation for 10-30L tanks, consuming less per day. An energy-saving and powerful small fish tank filter for daily use.
• 【Adjustable Flow for Different Fish Species】Knob-controlled precision adjusts water flow intensity – suitable for bettas, guppies and more, preventing shock to small fish. This hang on back filter gives you full control over filtration strength.
• 【Tool-Free Cleaning & USB Easy Installation】Snap-on assembly, filter parts can be removed separately for cleaning without any tools. It is extremely easy to set up—simply fill it with water, plug it in via the USB port, and it’s ready to use straight away, making life easier for fishkeepers.
• 【Ultra-Quiet Operation】Built-in brushless motor + shock-absorbing structure keeps noise below 30dB – quiet enough for bedrooms and offices. The ideal hang on back filter aquarium and external fish tank filter for peaceful environments.

Product description This 2.5W compact hang-on back filter delivers 5-in-1 functionality: debris trapping, oxygen boosting, bacteria hosting, silent running and low power draw. Perfect for small fish tanks. With 250L/h flow rate but less daily consumption, it keeps 10-30L aquariums crystal clear without spiking your bill. Energy smart. Knob-adjustable flow protects delicate fish like bettas from strong currents. Tailor the intensity precisely – no more stressed swimmers in your small tank. Operating at ≤30dB, this external filter won’t disturb sleep or office work. The brushless motor and shock-absorbing design make whisper-quiet performance a reality. Tool-free snap-on cleaning and USB plug-and-play installation. Just fill with water, connect to any 5V USB source, and enjoy immediate, hassle-free filtration. Specifications: Upgraded Mini Filter QL 2.5W USB Model Material: Plastic Size: Suitable for 3mm/5mm Cable length: 80cm Colour: Black Package Contents: 1 wall-mounted USB aquarium filter Note: Due to lighting conditions during photography and colour differences between monitors, the product images may vary slightly from the actual item. The actual product shall prevail! Please note that manual measurements may contain slight discrepancies; the actual product shall prevail. Directions /