HomeFish encyclopediaRay-finned fishesPerch-like fishAsiatic glassfishesCommerson's glassy Commerson's glassy (Ambassis ambassis) Scientific name: Ambassis ambassis Lacep?de, 1802 The Commerson's glassy (Ambassis ambassis) is a freshwater fish of the family Ambassidae. Native range: Africa, South Africa to Kenya, Madagascar, R?union and Mauritius. BiologyTolerant of freshwater when water temperature is within 7-32?C. Tends to be more tolerant of lower temperatures in water of low salinity (2ppt) than in seawater. Feeds at night on crustaceans, fish fry and larvae and insects. Salt dried and eaten in some countriesSource: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAmbassis ambassisFamilyAmbassidae (Asiatic glassfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length15.0EnvironmentMarine; freshwater; brackish; demersal; oceanodromousClimateSubtropicalDistributionAfrica: South Africa to Kenya, Madagascar, R?union and Mauritius.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