If you want to make fish live for a long time, you must first change water regularly. Changing water should not be too frequent or too lazy. Changing water too frequently or too much at one time will cause certain stimulation to fish. Changing water too lazy will make water quality unable to be maintained, which will increase the risk of fish getting sick. Usually, it should be changed once a week, and it is better to change one fifth of the total water volume.

Fish must be fed. In order to make fish grow quickly, it is usually fed two or three times a day. It should be noted that although there are many times of feeding, the amount of feeding is not large, which is more conducive to its development. If the amount of feeding is large, it is easy to cause fish to suffer from enteritis and other diseases, and it will also make them die.

Not only tropical fish have certain requirements for temperature, but even some wide-temperature fish also attach great importance to water temperature. Although this kind of fish has strong adaptability, low temperature will inhibit its appetite, reduce its resistance and increase its risk of illness. Therefore, it is best to pay attention to temperature control in low temperature season, which is beneficial to its growth.

Many fish die because of illness, so disease prevention is particularly important. Once you find signs of illness, you need to change the water to heat it up immediately, and at the same time, you need to add a proper amount of salt to the water, which can have a therapeutic effect. If the illness is serious, you need to soak it in medicine.