Pneumatic Aquarium Filter Bio Water Circulation Oxygen Increasing Biochemical Bacteria Culture

Description report Features: 1. Powerful filtering ability, keeping the water clear for a long time, reducing frequent water changes. 2. Decompose excrement into small particles and absorb them back into the biochemical cotton to cultivate a nitrifying bacteria system. 3. Filter bubble stone can increase the solubility of oxygen in water. 4. Exquisite and mini, do not take up space, and are suitable for all kinds of small fish tanks. 5. The airflow of the oxygen pump comes out from the small hole at the bottom of the filter. Because the pipe of the filter is relatively thin, the bubbles swarm upward in the pipe, which creates a thrust on the water in the pipe and makes the water flow circulate. 6. The inlet of the water flow is in the middle of the biochemical filter cotton. After the water flow passes through the biochemical filter cotton, it has a preliminary physical filtering effect. The feed, paper scraps, etc. in the fish tank are retained by the biochemical filter cotton, and then there are nitrifying bacteria and other microorganisms on the biochemical filter cotton to further decompose the filtered dirt. How to use: 1. Connect this product and the air pump with an air pipe 2. Plug in the air pump, and the product outlet water (or bubbles) indicates normal operation. Note: If the air pump is lower than the water pump, please install a check valve