It is best not to keep red-tailed catfish with other fish, because red-tailed catfish is very greedy and very cruel to small fish, and can eat up fish that are slightly smaller than it is raised in a fish tank. But if you want to mix it, you can choose gar and arowana.

Pay attention when raising red-tailed catfish Don't have too complicated landscaping in the tank, because red-tailed catfish can easily be startled and hit the tank at night.