Features:1. Keep the water clean: The principle of biological filtration, and the use of multi-stage filtration to cultivate high-density nitrifying bacteria to achieve water clean and good stability.3. Multi-layer design: filter several times, the bottom of the filter is a layer of biochemical sponge, the medium is gas stone, and then the funnel outlet is covered, the filtering effect is better.3. Material: Our biochemical sponge filter is made of environmentally friendly plastic, strong and durable.4. With suction cup: The filter has a powerful suction cup, which is durable and easy to clean and install.5. Application: This filter is suitable for ornamental fish breeding, breeding and juvenile fish breeding, especially for small fish and juvenile fish. Description: The biochemical cotton filter can cultivate nitrifying bacteria and adopts multi-layer design with large surface area, which can filter impurities and make water quality clearer. Specifications: Size: 9.8*3cm Weight: 51g
