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,
Kissing gourami By increasing the angle of opening of the jaw, this joint allows kissing gourami to access to these nutrients. "H. temminkii", however, is the only species known that uses this articulation in this way. The intramandibular joint divides the jaw into two independent elements so that it increases the degrees of freedom and the potential number of ways of getting food. This articulation, although its mechanism and anatomy are still being studied in a hurry, results in an adaptation of Helodoma temminkii and its feeding. Shallow, slow-moving, and thickly vegetated backwaters are the kissing gourami's natural habitat. They are midwater