Chinese fish are fierce by nature, and I don't know what kind of fish can get along with them. Although China fish is aggressive, it is not impossible to mix with other fish. According to the differences of living habits of different kinds of ornamental fish, they are reasonably matched with Chinese fish to achieve the purpose of polyculture.
Fish mixed with arhat should be about the same size. For tiger fish, a fierce fish, the best way to show it is to put them in the same water tank for a few days in addition to glass isolation and observe whether they live in peace. If you can go to the * * * place, take the glass away and observe it for a few days. If there is no chasing and fighting, it can basically be mixed.