HomeFreshwater aquarium fishOther freshwater fishCongolli Congolli (Pseudaphritis urvillii) Scientific name: Pseudaphritis urvillii Valenciennes, 1832 The Congolli (Pseudaphritis urvillii) is a freshwater fish of the family Pseudaphritidae. In the aquarium it needs water at 5–20°C (41–68°F). Native range: Oceania, southeast Australia, including Tasmania. Congolli care at a glanceTemperature5–20°C (41–68°F) BiologyFound in streams and estuaries. Inhabits slow-flowing water around log snags, under over-hanging banks or among leaf litter. Adult fish migrate downstream to spawn in weedy estuaries from late April to August. Feeds on insects, crustaceans, mollusks, worms and fishes. Often buries itself in the substrate to ambush passing prey. A highly efficient osmo-regulator, able to withstand direct transfer from salt to fresh water without any indication of stress. Good eating, but too small to be considered a prime angling target.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePseudaphritis urvilliiFamilyPseudaphritidae (Catadromous icefishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length36.0Common length17.0EnvironmentMarine; freshwater; brackish; benthopelagic; catadromousClimateTemperateDistributionOceania: southeast Australia, including Tasmania.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (K=0.3) More other freshwater fishFreshwater garfishXenentodon cancilaFinescale tigerfishDatnioides microlepisShort-tailed pipefishMicrophis brachyurus brachyurusPumpkinseedLepomis gibbosusLined soleAchirus lineatusSouth American lungfishLepidosiren paradoxaSee all other freshwater fish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026