HomeFreshwater aquarium fishGouramis & bettasDwarf gourami Dwarf gourami (Trichogaster lalius) Scientific name: Trichogaster lalius Hamilton, 1822 The Dwarf gourami (Trichogaster lalius) is a freshwater fish of the family Osphronemidae. In the aquarium it needs water at 25–28°C (77–82°F). Native range: Asia, Pakistan, India and Bangladesh. This is the smallest and most popular of the small gouramis which have been widely distributed outside its native range. Dwarf gourami care at a glanceTemperature25–28°C (77–82°F) BiologyInhabits slow moving streams, rivulets and lakes with plenty of vegetation. Aquarium keeping: minimum aquarium size 60 cm.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameTrichogaster laliusFamilyOsphronemidae (Gouramies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length8.8EnvironmentFreshwater;; pH range: 6.0 - 8.0; dH range: 5 - 19 benthopelagicClimateTropicalDistributionAsia: Pakistan, India and Bangladesh. This is the smallest and most popular of the small gouramis which have been widely distributed outside its native range.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesAquarium: highly commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Fec=600 eggs) More gouramis & bettasRoundtail paradisefishMacropodus opercularisSiamese fighting fishBetta splendensCroaking gouramiTrichopsis vittataGiant gouramiOsphronemus goramyBetta albimarginataBetta coccinaSee all gouramis & bettas SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026