Koi usually turn red when they are adults, and their bodies are orange or reddish when they are minors. As adults, the color of the koi will become red, and the ink on the body of some koi will become smaller. If you want to make the koi turn red, you need to feed them more food or food containing astaxanthin, and provide them with enough sunshine, because sunshine can help them synthesize pigments.
1. When does the koi turn red
? Normally, the koi begin to turn red after they are adults. When they are born and minors, the color on their bodies is orange or orange-red. With the increase of time, their colors will become more and more bright. When some koi fish turn red, the ink on their bodies will also decrease. Koi is a kind of writing carp, which is mainly distributed in China and Japan. They are composed of red and black as a whole, their whole body is crimson, only the top of the head, dorsal fin and pelvic fin have black spots, belonging to the common species of Koi. The character of Koi is relatively mild, and the requirements for water temperature and quality are not high, and the feeding habits are relatively wide, so it is favored by many fish enthusiasts. As mentioned
above, koi need to grow up before they can turn red, so before they grow up, the breeder needs to feed them some color-enhancing feed, but the color-enhancing feed is not easy to digest, and some food rich in astaxanthin can also be fed. In addition to ensuring adequate food, breeders should also give them regular sunshine, so as to promote their pigment synthesis and make their body color more bright. You don't need to spend too much time in the sun at ordinary times, just 2-3 hours a day. When basking in the sun, it is better to leave half of the shade, so that the koi have a place to avoid the sun.
