the filter material of the fish tank? Usually, the filter material of the fish tank can not be cleaned completely, it must be cleaned in batches, otherwise it will destroy the original ecosystem in the tank. Clean with the original jar of water, can not use new water, and do not wash too hard, the surface of the dirty things can be washed clean. Only one fifth of the total amount is washed at a time, and then the next batch is washed every two days, which will cause some nitrifying bacteria to die, but the rest will still be alive.
the filter material 1. The first layer: The first layer of the filter box should put the physical filter material, usually cellucotton, which can filter out the dirty things in the water, so that the water becomes clear. Cellulose cotton will be blocked if it is used for a long time, so it should be cleaned regularly, but the more it is washed, the thinner it will be, so it should be replaced regularly.
2. The second layer: The second layer of the filter box needs to prepare filter materials for chemical filtration, such as ammonia absorption stone, zeolite, activated carbon and clean water resin, which can absorb harmful substances in water, so as to ensure the safety of the water body. It should be noted that the validity period of these filter materials is only about three months, so they need to be replaced regularly.
3. The third layer: Starting from the third layer, no matter how many filter boxes are behind, only biological filter materials are placed, such as biochemical cotton, biochemical balls, porcelain rings, etc. These filter materials can provide a place for nitrifying bacteria to attach, so they can not be easily cleaned or replaced, otherwise the nitrification system will be destroyed and the health of fish will be affected.
