Moonlight gourami in the floodplain of the lower Mekong. The moonlight gourami eats insects, crustaceans, and zooplankton. Like all labyrinth fish, the moonlight gourami has a special lung-like organ that allows it to breathe air directly. Because of this labyrinth organ, it is not unusual to see it go to the surface and gulp air. The ability to breathe air allows the moonlight gourami to survive in very low oxygen situations. In fact, if it remains moist it can actually survive out of water for up to several hours. As with other labyrinth fish, these species are oviparous and employ bubble nests
Kissing gourami each other in length and frame the body. The posterior most soft rays of each of these fins are slightly elongated to create a trailing margin. The foremost rays of the jugular pelvic fins are also slightly elongated. The pectoral fins are large, rounded, and low-slung. The caudal fin is rounded to concave. The lateral line is divided in two, with the posterior portion starting below the end of the other; there are a total of 43–48 scales running the line's length. The most distinctive feature of the kissing gourami is its mouth. Other than being terminal (forward-facing) rather than