1. Infrequent water change: Fish tank water turbidity is usually due to infrequent water change. In the daily feeding process, no matter what fish tank or how many fish are raised, the water should be changed regularly, otherwise the water quality will deteriorate and look very turbid, which is not good for the health of fish.

2. Insufficient filtration: When the filtration effect of fish tank is insufficient, the water body will become turbid. There are two manifestations of insufficient filtration, one is that the power of the water pump is not enough, which will affect the number of water cycles, thus reducing the filtration effect. The other is that there are too few filter materials to achieve the filtering effect.

3, too high density: If the feeding density is relatively high, the water in the fish tank will easily become turbid. Because fish need to eat, they also excrete, which will affect the water quality and cause bacteria to breed.

4. Overfeeding: Pay attention to the amount of food when feeding fish at ordinary times. If too much food is fed, if the fish can't eat it, it will decompose in the water, which will lead to a large number of microorganisms, which will lead to biological turbidity.

To solve water turbidity, we should start with changing water first, usually every five to seven days, and every time we change water, we can change one quarter, so as to maintain water quality. At the same time, it is necessary to strengthen filtration to ensure that the water circulation reaches 7-10 times per hour. In addition, changing large fish tanks or reducing the number of fish can also effectively prevent water turbidity. If the daily feeding amount is too large, it can be reduced appropriately.