Dwarf gourami Tetras, and other docile fish. They require a tank that can hold at least ten gallons. They are usually found swimming in the middle or top regions of the aquarium, because Gouramis are labyrinth fish and make use of their labyrinth organ if necessary. Dwarf gouramis do not do well with large, aggressive fish. Dwarf gouramis are so docile that they will allow themselves to be bullied to death rather than fight back. Males of other gourami species, as well as male Siamese fighting fish, may attack dwarf gouramis. If a Dwarf gourami is put with faster swimming top swimmers
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