OUKMAO USB Aquarium Internal Filter 3.5W – Quiet Nano Fish Tank Filter with Spray Bar & Adjustable Water Outlet

Why You'll Love It

Keep your aquarium water filtered, circulated and oxygenated with the OUKMAO 3.5W USB Aquarium Internal Filter. Its compact three-in-one design combines filtration, water circulation and aeration without taking up excessive tank space.

• Three-in-one aquarium care: Combines filtration, water circulation and aeration in one compact internal unit.
• USB-powered convenience: Connects to a compatible DC 5V USB power source for practical home or office use.
• Quiet daily operation: Designed to provide steady water movement with reduced operating noise.
• Adjustable water direction: Rotate the flat outlet to direct the water flow upward or downward.
• Spray bar included: Distributes water across the surface to encourage circulation and oxygen exchange.
• Compact internal design: Suitable for nano aquariums, shrimp tanks and small freshwater tanks.

How to Use

1. Rinse the filter sponge and removable parts with clean water before first use.
2. Attach the selected outlet or spray bar securely to the filter.
3. Mount the filter vertically inside the aquarium.
4. Make sure the filter body is fully submerged before connecting the power.
5. Connect the USB cable to a compatible DC 5V USB power source.
6. Adjust the outlet angle and check the water flow before continuous operation.

Cleaning and Maintenance

• Disconnect the USB power before removing or cleaning the filter.
• Rinse the sponge gently in removed aquarium water to help preserve beneficial bacteria.
• Remove debris from the intake slots, outlet and impeller area when required.
• Do not use soap, detergent or household cleaning chemicals on the filter parts.
• Clean the filter when the water flow begins to decrease.