20 to 30 small tanks, 20 to 30 small tanks generally use water goblins as filters. Water goblins, also known as sponge filters, are not very powerful and efficient, but they are very suitable for small fish tanks, and large fish tanks can also be used as auxiliary filtering means. It can be connected to an air pump and a water pump, so that in addition to filtration, it can also play the role of oxygenation. In addition, a three-in-one water pump can also be used, but it is better to block the oxygen port.
of filtration? 1. Physical filtration: The most important thing in filtration is physical filtration. The water flow formed by the filter can wash the impurities in the water into the filter box, and then filter them out by the filter cotton. With physical filtration, the water in the tank can be kept clear and look more beautiful.
2. Chemical filtration: Chemical filtration is generally divided into two types, one is to absorb harmful substances in water through ammonia absorption stone, soft water resin, activated carbon, etc., and the other is to precipitate impurities or remove algae through flocculants, algaecides, etc., so as to improve water quality.
3. Biofiltration: Biofiltration is a particularly important part of the fish tank. It mainly cultivates nitrifying bacteria, which can convert ammonia nitrogen in water into nitrate, so as to avoid poisoning fish. With the help of nitrifying bacteria, it can also inhibit the outbreak of algae, which has a good maintenance effect on water quality.
