1. Reason: Koi cannot grow without illumination. Insufficient illumination will lead to metabolic disorder and fading.
2. Treatment method: It needs to be supplemented with light. If it is not convenient to irradiate natural light, artificial light can be supplemented. Use incandescent lamps, led lamps and other lamps for supplementary lighting.
1. Reason: Koi carp not only need to be fed with fish food, but also need to be fed with animal feed. If you do not feed animal feed, koi will appear malnutrition, slowly fading.
2. Treatment method: Feed the koi with animal feed, usually twice a week. In the choice of feed, we can use red worms, earthworms, shrimp and other insects. From June to September every year, the appetite of Koi will increase, this stage can be added once a day, feeding time is morning or evening.
1. Reason: If the water for breeding koi is too clear, there is nothing in the water, and the koi may also have the problem of fading.
2. Treatment method: Add something with color to the fish tank for breeding koi, such as water grass, ceramsite, etc. Try to improve the natural environment and let the koi adapt slowly, so that the color of the koi will gradually change back.
