Top filter box.The uppermost layer is generally a physical filter layer, and the common one is filter cotton, which can intercept larger particles of impurities, such as fish manure, residual bait, etc.Then there may be biochemical filter layers, such as biochemical cotton, ceramic rings, bacteria houses, etc. These materials provide a place for beneficial nitrifying bacteria and other microorganisms to grow and reproduce, and through the action of microorganisms, harmful substances such as ammonia and nitrogen in the water are converted into less toxic substances.Some may also be equipped with activated carbon layers to absorb odors and pigments in the water.

2. Advantages

Good filtration effect: Multi-layer filtration has a synergistic effect, which can effectively remove various impurities and harmful substances from the fish tank water and keep the water quality clear.

Does not take up space: installed on the top of the fish tank, it will not take up too much space inside the fish tank, and it will not affect the beauty of the fish tank and the activity space of the fish.

Easy to maintain: because it is at the top, it is easy to observe and replace the filter material, and the operation is relatively simple.

Increase oxygen: During the filtration process, the flow of water can increase the contact between the water surface and the air, increase the amount of dissolved oxygen in the water, and facilitate the breathing of fish.

3. precautions for use

Regular cleaning and replacement of filter materials: The physical filter layer is easy to clog, and materials such as filter cotton need to be cleaned or replaced regularly to ensure the filtration effect.The biochemical filter layer should not be cleaned frequently to avoid destroying the beneficial microbial communities in it.

Match the size of the fish tank: Choose the appropriate top multi-layer filtration equipment according to the size of the fish tank and the number of fish to ensure that the filtration capacity matches the needs of the fish tank.

Pay attention to water flow regulation: Adjust the water flow speed of the filtration system to avoid the water flow being too large or too small to cause adverse effects on the fish.