Can koi fish be raised with crucian carp?

* * Yes * *. Koi fish and crucian carp can be raised together. They all have similar feeding habits, are omnivorous and need similar water temperature. In addition, polyculture of koi fish and crucian carp has the following advantages:

1. Accompany each other and increase the happiness of fish.

2. Carassius auratus is smart, active and capable of grabbing food. If the number of polyculture koi fish is not too much, and koi fish can't win the crucian carp, then the growth rate of koi fish will not be too slow.

3. Crucian carp will grab food. Basically, crucian carp is eating, koi fish is playing, and koi fish grows slowly because it can't eat food, which will inhibit the growth of koi fish. Such growth will make koi fish look better.

It should be noted that the polyculture crucian carp in koi fish should not be too small, and the polyculture crucian carp in koi fish should be wild crucian carp, because the wild crucian carp grows fast and is much larger than the artificially cultured crucian carp.