NICREW Slim Aquarium Filter for up to 5 Gallon Tanks

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The 3-in-1 Filter Cartridge offers efficient filtration with a unique Waterfall Design that oxygenates the water, promoting healthier and more active fish while reducing splashing for a quiet return. The Adjustable Flow feature allows you to reduce the flow for betta, shrimp, plants, or other low-flow needs without compromising filtration efficiency.

To ensure your fish's well-being, it's important to monitor the water flow. Delicate fish, such as betta and goldfish, require a more gentle water flow, as a strong flow can cause them stress and make it difficult to swim around. If the flow is too strong, the fish will prefer to stay in one area or avoid certain sections of the tank.

The No-Mess Filter Cartridge provides BIO, mechanical, and chemical filtration in a single, fully assembled unit, making it easy to slide out for quick maintenance. You can also customize it to suit your specific needs. The Pre-Filter Sponge prevents small fish, shrimp, and debris from getting sucked up, while also purifying the waste chemicals in the water, making it safe for your fish to live in.

The Leveling Knob is used to ensure the filter is properly positioned against the tank, preventing water spills. The Patent Pending Priming System allows the filter to auto-restart if the power is interrupted and restored.

If your filter stops working, first check if the impeller is clogged. Use tweezers to gently remove the impeller, rinse it, and clean the impeller chamber before gently putting it back in place. Ensure the impeller is free to rotate and prime the filter.

Our Slim Filter is designed for easy installation, whether externally or internally. It comes in various sizes to fit aquariums up to 10 gallons, with quiet operation and adjustable flow, making it a great choice for nano and pico tanks, as well as for shrimp or betta.

The Slim Filter includes an extension tube, allowing you to fit it on framed aquariums. It's important to fill the filter case completely with water before starting it, as the pump must not run dry. If the priming process doesn't occur, verify that all parts are installed correctly and firmly, and ensure the water level in the tank is at the appropriate level.

In the event of a loud filter, try adjusting the Leveling Knob to reduce vibration. If air does not evacuate from the filter or the aquarium water level is lower than normal, resulting in excessive splash, fill up the water in the tank. If the impeller is worn, it may need to be replaced.

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