The fish that can be mixed with koi fish include scavenger, goldfish, grass gold, golden crucian carp and so on. But some successful koi fish farmers, the koi fish mixed with dragon fish and turtles.

However, when you want to mix koi with other fish, you need to pay attention. Koi fish are very gentle, so when choosing mixed fish, you can't choose them either. Too ferocious, can get along with koi fish, and have very little or no aggressiveness.