Internal Aquarium Filter, Fish Filter, Practical Aquarium Filter with Tubing to Increase Water Oxygen Content

Increase Water Oxygen Content: The aquarium air filter removes excess impurities from the water, helping to stabilize water quality and increase oxygen solubility. Easy to Use: There is a suction cup on the bottom of the aquarium filter, allowing it to be attached anywhere in the aquarium. No special reinforcement of the base is required, and there's no need to worry about accidentally injuring your fish. Ultra-Quiet: When the aquarium air pump is in use, it operates quietly and makes no noise, yet provides excellent filtration. You can use it with confidence. Three-Layer Design: The bottom of the mini filter pump is a layer of biochemical sponge, which filters impurities from the water. The middle layer consists of bubble stones, which increase the oxygen content in the water and improve the survival rate of fish. The top layer is the water outlet. Wide Range of Applications: The oxygen filter is suitable for small aquariums such as spherical aquariums, small aquariums, specially shaped aquariums, and other small home aquariums.