1, fish injured: fish injured, the wound is easy to lose scales. There are two reasons for its injury, one is that the fish is mechanically damaged during long-distance transportation, the other is that there are some sharp stones or ornaments in the fish tank, and the fish will be injured if they accidentally touch it.
2. Caused by fighting: Different fish have different personalities. Some fish are relatively docile, and there is nothing wrong with mixed breeding. Some fish are very irritable, aggressive, or have a certain sense of territory. Once their own territory is invaded, they will chase after each other and bite each other, and the fish that is bitten will also lose their scales.
3. Parasites: If the fish is parasitized by parasites, the affected area will also lose its scales. This kind of parasite will generally make the fish feel uncomfortable, but also have the performance of congestion or package, the fish will also appear the phenomenon of rubbing the tank.
4. Poor water quality: There are many reasons for poor water quality, such as too much feeding density, too much feeding at ordinary times, and not paying attention to changing water, etc. These will not only lead to a decline in water quality, but may also cause fish to lose scales.
Generally, if fish lose scales, you can add salt to the tank, or apply potassium permanganate to the place where the scales fall, which can avoid other diseases caused by infection at the wound, and also help the recovery of the fish.
