The first thing to do when the fins are rotten is to change the water. Whether caused by bacteria or parasites, changing water can reduce its content and improve water quality, thus reducing the possibility of deterioration of fish disease. Change water generally every 1-2 days, each time about a quarter of the water, not more than a third, change too much easy to stimulate the fish body.
After changing the water for the fish, the next thing to do is to raise the temperature, but only by raising the temperature by 1-2 ℃. Appropriate warming can accelerate the metabolism of the fish, and at the same time can stimulate its resistance, so that it can heal itself. However, it should be noted that warming also has side effects, for some bacterial diseases, warming will also accelerate the reproduction of bacteria.
In order to alleviate the side effects caused by temperature rise, it is necessary to add a proper amount of sea salt to the water body. Generally, the concentration is about three thousandths, and the maximum concentration can not exceed five thousandths. By adding salt, the osmotic pressure of the water body can be increased, which can reduce the immersion of the water body from the body surface, thus reducing the possibility of bacterial invasion of fish.
For some troublesome diseases, in addition to changing water, warming up and adding salt, it is also necessary to give fish medicinal immersion. Furacilin powder or furazolidone can be used, which can be mixed into solution, soaked for about 30 minutes, usually once a day, usually a week or so will recover.
