Biochemical sponge filter for aquariums for high-efficiency filtration to protect against toxic waste and provide you with pure water by filtering cultured nitrifying bacteria, XY-180

The biochemical cotton filter uses an oxygen pump as its power source, providing high gas lift without noise. It increases the dissolved oxygen in the breeding water, working in conjunction with the filter itself.

These sponge filters offer excellent mechanical and biological filtration—simple, efficient, and easy to clean (simply press into the tank water). They work perfectly for achieving exceptionally clean and clear aquarium water. The low-cost sponge filter can be reused multiple times.

It features dual functions: aeration and cultivation of nitrifying bacteria. The filtration principle, combined with biological filtration and multi-level filtration, cultivates high-density nitrifying bacteria to achieve consistently clean and high-quality water.

When first using the filter, if it doesn't sink, press it firmly to ensure the biochemical cotton fully absorbs water and functions properly. It can be used with a cylinder and external plug, and the top filter provides excellent pre-filtration, eliminating any dead zones.

Suitable for breeding and feeding small fish. Especially effective for colorful angelfish, small fish, and ornamental fish. Ideal for shrimp tanks, ornamental fish tanks, goldfish, baby fish, bettas and breeder tanks.