1. What's the matter with erythema on koi fish Koi fish has erythema, which indicates that it has erythema disease. There are many causes of this disease, which often need to be investigated one by one. First of all, the growth of koi needs a certain amount of light. If it is kept in the dark for a long time, it may get sick, so it is necessary to supplement it with a supplementary light lamp. In addition, too low a temperature can also cause it to get sick. Although it is a wide-temperature fish, it is best to keep the water temperature high. In addition, it may also be a complication of other diseases.
2. How to treat koi erythema1. Illumination: This disease is mainly caused by insufficient illumination, so the first step of treatment is to increase illumination and prolong the illumination time of fish tank. You can also install a lamp in the fish tank, which can also play the role of supplementing illumination.
2. Temperature rise: After fish get sick, they basically need to heat up. Increasing temperature can improve the resistance of fish and stimulate its metabolism, which is very helpful for recovery. Usually, the water temperature should be kept at about 26-28 ℃, and the fluctuation of water temperature should be avoided at ordinary times, especially when changing water.
3. Drug: Erythema is best treated with drugs, and yellow powder, that is, furacilin, is generally selected. Prepare 10 kg of water, pour 0.2 g of yellow powder and 250 g of salt into it, then put the sick fish into it and soak it for 10-20 minutes. You can also sprinkle yellow powder or oxytetracycline in the whole tank, but you need to change the water every few days.
