These are extraordinary fish! These catfish share many attributes with the Siamese Fighting fish. Just like the Bettas, these fish come to the surface to "breathe" atmospheric air. Not only do they breathe air, but they also breed much the same way that Bettas do. They actually "build" bubble nests at the surface. The male guards the nest and takes care of the eggs. These peaceful fish will reach lengths of up to 6" in an aquarium, so they are suitable for larger aquariums and like sized tank mates.