Pearl gourami pair of pearl gouramis, although anything above that volume is greatly recommended, since these fish show signs of stress, abnormal aggression, and illness when feeling confined. Preferred tank temperatures are 22–28°C (72–82F). Tanks with surfaces exposed to fresh air are recommended so that the pearl gourami's labyrinth organ can function correctly. As with any tropical aquarium, adequate filtration, lighting, substrate and decorations, plants, and proper care are required. The pearl gourami is a territorial fish and should only be suited in a community tank with fish of similar size to it. However, this fish may be somewhat timid or shy,
Honey gourami becomes much brighter and is used to court the female. The undersides of the males become black when breeding. Males also exhibit somewhat of an orange tinge in their fins, with the exception of the caudal fin. The male also has longer fins, with a pointed dorsal fin and extended anal fin rays. Two other color varieties have been selectively bred—a red-orange variety known as sunset or robin red, and a lighter variety called gold. This can sometimes lead to confusion, in part because the red-orange type can look like the red variety of dwarf gourami ("Colisa lalia"). The honey