Fish that can be mixed with koi:

1. Goldfish. It is better to mix koi fish and goldfish. Koi are relatively large, so keeping small fish mixed with fish will inevitably cause problems. Although goldfish are not as big as koi, they are not very small and will not be eaten by them, so they can be kept mixed.

2. Scavenger. It is better to raise koi and scavengers together. Raising scavengers is very simple, and you can feed them with almost only water. But to raise it well, it is best to give it weakly acidic soft water or neutral water. The suitable water temperature is above 20℃. These conditions also apply to goldfish.

3. Map fish. Koi is also suitable to be mixed with map fish. Although map fish is relatively large, its character is also very docile and its environmental requirements are not very high. It just eats more.

4. Wheat fish. Koi carp can be mixed with the mild-tempered wheat ear fish. Wheatear fish and koi are both cold-water fish. They can adapt to the water temperature and can be kept together.

5. Grass carp. Grass carp has a strong physique, strong adaptability to the environment, and a wide range of feeding habits. It is easy to raise and can be raised with koi. However, you should pay attention when raising it with koi. You should choose a grass carp that is about the same size as koi. more harmonious.