What should I do if the fish's tail is bloodshot?

If the fish tail is found to have red blood, the water in the fish tank should be replaced immediately to improve the water environment and reduce the ammonia nitrogen content. ||| Temperature rise: Temperature rise can accelerate the metabolism of fish, but it can also promote bacterial reproduction. |||| Salt: In order to prevent bacteria from invading fish, it is necessary to add salt in the tank to improve the osmotic pressure of water. |||| Medicinal bath: If the condition is serious, it needs to be soaked with nitrofurazone.

If there is red blood on the tail of the fish changing water, change the water properly first. Usually this situation is due to poor water quality, high ammonia nitrogen content in water, or the existence of some harmful bacteria. Changing water can improve water quality and help fish recover. It should be noted that the water should be changed frequently at this time, usually once every other day.

Second, what needs to be done after heating up and changing water is heating up. Heating can accelerate the metabolism of fish, so that it can discharge harmful substances, which has a certain therapeutic effect on some diseases. But in the same way, warming will accelerate the reproduction of bacteria in water, so it is also harmful to fish and needs to be avoided by adding salt.

Third, the role of salt under salt is to change the osmotic pressure of water, thus reducing the possibility of water entering fish, and at the same time, it can also hinder bacteria. It should be noted that the concentration of salt should be strictly controlled, usually not exceeding five thousandths. If the concentration is too high, the water in the fish will be continuously lost, which will do some harm to the fish.

Fourth, the medicinal bath If the fish shows no signs of recovery after changing water, adding salt and heating, it needs medical treatment. The commonly used drug is nitrofurazone, commonly known as yellow powder, which can play a role in sterilization and treat many diseases. You can pour it directly into the fish tank and change the water the next day to see the effect.