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They prefer the company of other fish of similar sizes and temperament. They are easy to keep at three months old at around 7.5 cm or 3 in long. At this age, they have a pronounced beak. They can grow rapidly given sufficient food and space to move. Even under less than ideal conditions, gourami can grow from 7.5 cm to 50 cm in four years.
Dwarf gouramis sold in fish stores may also be solid colors (e.g., powder blue dwarf gourami or red flame variety) which are nothing but captive bred color morphs of the same species. Similar to the archerfish, the dwarf gourami can project a stream of water from its mouth to hunt prey above the surface, to a maximum distance of ~5 cm. [5]
This organ is a vital adaptation for fish that often inhabit warm, shallow, oxygen-poor water. [1] Gouramis can live for 1–5 years. The earliest fossil gourami is Ombilinichthys from the early-mid Eocene Sangkarewang Formation of Sumatra, Indonesia.
When breeding kissing gouramis, soft water is preferred. As the fish do not build nests, lettuce leaves placed on the water surface serve as a spawning medium. The lettuce will eventually host bacteria and infusoria upon which the fish will feed. The maximum length for kissing gouramis in aquariums is between 30 and 40 cm (12 and 15.5 in).
It is kept in water that ranges from 22 to 28 °C (72 to 82 °F) and that is soft (50 mg/L) and acidic (pH 6.0 - 6.5). [4] It eats a variety of foods including flake foods, bloodworms, and brine shrimp. Aquarists avoid keeping it with barbs or other fin-nippers who may damage their thread-like ventral fins. [5] T. labiosa are known to breed well.
Adults of Osphronemus laticlavius can grow up to 50 centimetres (20 in). These fishes have 10 dorsal spines, 13–14 dorsal soft rays, 11–12 anal spines and 16 – 18 anal soft rays. [5] Body is massive, laterally compressed, with an almost oval shape. The head is snub-nosed, with prominent jaw.
The three spot gourami (Trichopodus trichopterus), also known as the opaline gourami, blue gourami, and gold gourami, is a species of fish native to southeastern Asia, but also introduced elsewhere. [1] This gourami gets its name from the two spots along each side of its body in line with the eye, considered the third spot. [3]
The recommended pH is 5.8 to 8.5 with a water hardness of 2 to 30 dH and a temperature of 72 to 86 °F (22–30 °C). A snakeskin gourami can grow up to 8 inches (20 cm) in captivity and its spawns are also unusually large. Snakeskin gouramies, being omnivores, eat live food such as Tubifex worms, insects, insect larvae and crustaceans.