Thick-lipped gourami Thick-lipped gourami The thick-lipped gourami ("Trichogaster labiosa") is a species of gourami native to Southeast Asia. It is a popular aquarium fish. Thick-lipped gouramis can reach a length of TL. They are sexually dimorphic, with the female being silvery, but the male marked with oblique thin red and blue stripes along its flanks. This fish is a freshwater species native to south Myanmar. It has also been introduced into Colombia. Like most other gouramis, the thick-lipped gourami builds a bubble nest into which the eggs are placed. The male guards the eggs but ignores the fry. The thick-lipped gourami has
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