Under normal circumstances, the filter will not affect the fish to sleep. Unless the fish tank itself is small and a powerful filter is installed, the water flow in the tank is too fast, so that the fish will be affected when resting, and there will be the possibility of sideways at ordinary times. Usually, the choice of filtration is related to the size of the fish tank, and the flow rate of filtration is generally five to ten times the volume of water.
1. Physical filtration: Physical filtration is the most basic function of the filter. Its function is to isolate large particles in the water, which can help to improve the water quality. The main filtering substances are feed particles, fish feces, secretions and mucus on the body surface.
2. Biofiltration: Some beneficial bacteria can be cultured in the filter. These bacteria can decompose harmful substances in the water, such as ammonia salt, nitrite, phosphate, etc. The filter materials in this respect mainly include biochemical balls, ceramic rings, glasses, coral sand, etc.
3. Chemical filtration: Chemical filtration is to remove omnivores in water through chemical agents. Commonly used are water quality stabilizers, flocculants, algaecides, deodorants and protein decomposers. It should be noted that the use of chemicals must be strictly in accordance with the instructions, otherwise it will have adverse effects on fish.
4. Adsorption and filtration: Adsorption and filtration are generally some substances with extremely high carbon content, such as wood and coal, which can adsorb proteins, trace elements and peculiar smell in water.
