When Mickey Fish is mixed with other fish, if the fish tank chosen is too small or there are too many fish, the fish may fight for territory, and then Mickey Fish will bite other fish. In addition, too little food and too many fish may cause them to fight over food. Mickey fish belongs to tropical fish, and likes to live in alkaline water with warmer water temperature. This kind of fish is docile in character, and it generally does not fight when mixed with fish with similar temperament, such as Silver Mary, Black Mary, Zebrafish, Red Swordfish and Guppy.

Mickey fish suitable for polyculture. Fish with roughly the same living environment, small difference in size and weak aggressiveness can be selected for polyculture. The fish mixed with them should be tropical fish, and they like to live in high water temperature and alkaline water. Mixed fish need fish of the same size and similar size as Mickey fish, such as lantern fish, silver Mary, electro-optic beauty, red swordfish, zebra kissing fish and so on.

In polyculture, attention should be paid to putting fish of similar age together as much as possible, because fish of similar age will not fight when eating. In addition, if you choose some docile fish to mix with this kind of fish, such as guppies, you don't have to worry about fighting or competing for territory at all.