HomeFish encyclopediaRay-finned fishesPerch-like fishTemperate perchesTasmanian pigmy perch Tasmanian pigmy perch (Nannoperca australis) Scientific name: Nannoperca australis G?nther, 1861 The Tasmanian pigmy perch (Nannoperca australis) is a freshwater fish of the family Percichthyidae. In the aquarium it needs water at 10–30°C (50–86°F). Native range: Oceania, endemic to Australia. Tasmanian pigmy perch care at a glanceTemperature10–30°C (50–86°F) BiologyOccurs in lotic and lentic freshwater bodies. Inhabits vegetated margins of streams, billabongs, drains, dams and swamps in still or gently flowing water. Forms small groups and is a very common prey item for introduced fishes, such as the Redfin perch and trout. Feeds on small crustaceans, insects and their larvae. Breeds from September to January, when water temperatures rise above 16?C. Reproductive habits and biology are typical of the family. Maximum life expectancy is about 5 years.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNannoperca australisFamilyPercichthyidae (Temperate perches)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length8.5Common length6.0EnvironmentFreshwater; benthopelagicClimateTemperateDistributionOceania: endemic to Australia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (tmax=5; Fec=78-679 (batch fecundity)) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026