When you find that the fish's body is rotten, the first thing to do is to stop feeding. Usually after the fish is sick, appetite will be affected, feed is not eaten, residual bait in the water will lead to deterioration of water quality, which is not conducive to the recovery of the fish, so stop feeding food. Don't worry about the fish will starve to death, this kind of animal's hunger tolerance is very strong, you can wait until the fish recovered, and then feed it.
The cause of fish body decay is usually a variety of fungi, if the situation is not very serious, you can change the water to raise the temperature and salt to make the fish self-healing. In peacetime, water exchange is different, and water exchange during illness is basically every other day, so that water conditions can be improved frequently. The temperature does not need to rise too high, compared with normal time, it is OK to increase 1-2 degrees Celsius, too high is not good. Salt is to control the salinity, generally about three to five thousandths.
For the fish whose condition is already relatively serious, self-healing is impossible, and they must rely on medication. Malachite green can be selected, generally 50 kg of water into 0.3 grams of malachite green can be, the fish into the solution can be soaked for 10-20 minutes. Furacilin can also be used, which is commonly known as yellow powder, every 100 liters of water, under 1 gram can be, generally need to soak for 1 day.
