Pearl gourami brighter and is used to court the female. Males also exhibit somewhat of an orange tinge in their fins, with the exception of the caudal (tail) fin. The male also has longer fins, with a more pointed dorsal fin and extended anal fin rays. The pearl gourami is native to Thailand, Malaysia and Indonesia (where it is found on the islands of Sumatra, and Borneo). It occurs in lowland swamps with acidic water. This fish prefers the top and middle levels of the water. A tank with a volume of 120 litres (30 gallons) or over is adequate for a
Croaking gourami close to the water surface. At night, they might be found "sleeping" at the bottom, even resting on the substrate (which is not normally a cause for concern), or hovering motionless at the water surface. Like all gouramis, the croaking gourami can breathe atmospheric oxygen from above the water surface using a specialized labyrinth organ (like the Betta) if necessary. It is important, therefore, that the surface of the water be exposed to fresh air, usually accomplished by keeping them in an open-top tank or using a hood that allows air ventilation. If you are using good air pumps, this