There are many cases of fish fading, some can recover, some can not. For example, the fading caused by lack of light, as long as the light is properly supplemented, the body color will change back, similar to the fading caused by lack of nutrition, as long as good food is provided, it will soon recover. But if the fading is caused by aging, it is basically impossible to recover, and the situation will become more and more serious.
1, supplement nutrition: want to prevent fish fading, usually must pay attention to supplement nutrition, according to different species, choose the appropriate fish feed. It is usually fed two to three times a day, and the dosage should not be too much each time, so that a small number of times is easier to digest and absorb, and can avoid diseases such as enteritis.
2, proper illumination: fish farming must let it see the light properly, but the fish tank should not be placed in the sun, because if the illumination time is too long, it is easy to cause algae outbreaks. Therefore, it is better to equip a special aquarium lamp in the tank, so as to supplement 6-8 hours of light every day, which can prevent the fish from fading.
3. Change the water in time: No matter what kind of fish is used, even if the filtering effect is good, the water should be changed regularly, so as to avoid the aging of the water quality, and the fish will not fade easily. Usually the water should be changed once a week, and the water quality can be maintained well. It can be changed once every two weeks, about a quarter of each time.