1. How to distinguish koi from goldfish Koi and goldfish have little difference in appearance, so it is difficult to separate them. But there is still a difference between them:
1. Racial difference: First of all, from the racial point of view, although they are all artificially bred varieties. But koi is more similar to carp, and it belongs to a variety of carp. Goldfish is more similar to crucian carp and belongs to a variety of crucian carp.
2, tail difference: Compared with other characteristics, their tails are quite different. Koi has a single tail, while goldfish has a double tail.
3. Beard difference: You can also see if they have a beard. Koi has a beard, while goldfish has no beard.
4. Difference in body shape: You can also look at their body shape. Koi is a large ornamental fish, while goldfish is a small ornamental fish. Individuals of the same age are generally koi fish and goldfish.
2. Can koi and goldfish be mixed?Koi and goldfish can be mixed. From the living environment, koi and goldfish have little difference in living environment, and they are both suitable for living in water at 22-26 ℃. Therefore, when polyculture, breeders do not need to specially adjust the temperature of water. From the temperament point of view, koi and goldfish are mild in temperament, and there are few fights when they are mixed. From the point of view of feeding habits, koi and goldfish are omnivorous fish, and it is more convenient to feed them when they are raised together. Therefore, they can be polybred, but attention should be paid to selecting individuals with little difference in size.
