However, the properties of other species need to be analyzed.

For example, whether it can threaten the growth of loach fish and whether to eat loach fish.

If the water surface conditions are suitable for other fish polyculture

I suggest you use cage culture for polyculture.

This can ensure the growth of loach fish and not be eaten by other fish, but it is very expensive.

But his profit is also very good, if it can be reasonably matched.

What kind?

Effect is very good

I hope this helps.

I wish you success!