HomeFish encyclopediaRay-finned fishesPerch-like fishAsiatic glassfishesDuskyfin glassy perchlet Duskyfin glassy perchlet (Parambassis wolffii) Scientific name: Parambassis wolffii Bleeker, 1851 The Duskyfin glassy perchlet (Parambassis wolffii) is a freshwater fish of the family Ambassidae. In the aquarium it needs water at 18–25°C (64–77°F). Duskyfin glassy perchlet care at a glanceTemperature18–25°C (64–77°F) BiologySecond anal spine conspicuously enlarged.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameParambassis wolffiiFamilyAmbassidae (Asiatic glassfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length20.0Common length9.4EnvironmentFreshwater; demersalClimateTropicalDistributionAsia: discontinuous distribution in mainland and insular southeast Asia: Chao Phraya and Mekong basins; islands of Sumatra and Borneo. Reported from the river systems of Maeklong, Peninsular and Southeast Thailand.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026