Some keep them to avoid bad fortune. Legend has it that the climbing perch will avoid any demons or demonic powers to enter the home the live in. What a TALE!!! :) The Anabantidae are a family of perciform fish commonly called the climbing gouramies or climbing perches. As labyrinth fishes, they possess a labyrinth organ, a structure in the fish's head which allows them to breathe atmospheric oxygen. Fish of this family are commonly seen gulping at air at the surface of the water; which then passes out of their gills or mouth when they dive beneath the surface.