HomeFreshwater aquarium fishGouramis & bettasFrail gourami Frail gourami (Ctenops nobilis) Scientific name: Ctenops nobilis McClelland, 1845 The Frail gourami (Ctenops nobilis) is a freshwater fish of the family Osphronemidae. In the aquarium it needs water at 20–24°C (68–75°F). Native range: Asia, India and Bangladesh. Frail gourami care at a glanceTemperature20–24°C (68–75°F) BiologyFound in rivers and lakes with overgrown vegetation, streams, ponds and beels. Larvivorous.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCtenops nobilisFamilyOsphronemidae (Gouramies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length10.0EnvironmentFreshwater; brackish; benthopelagicClimateTropicalDistributionAsia: India and Bangladesh.Conservation status (IUCN)Near Threatened (NT)Threat to humansHarmlessUsesFisheries: of no interest; aquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More gouramis & bettasPygmy gouramiTrichopsis pumilaSpotted bettaBetta pictaCrescent bettaBetta imbellisSlim bettaBetta bellicaChocolate gouramiSphaerichthys osphromenoidesBadisBadis badisSee 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