HomeFish encyclopediaRay-finned fishesPerch-like fishGrunters or tigerperchesFortescue grunter Fortescue grunter (Leiopotherapon aheneus) Scientific name: Leiopotherapon aheneus Mees, 1963 The Fortescue grunter (Leiopotherapon aheneus) is a freshwater fish of the family Terapontidae. BiologyAdults inhabit rocky pools and slow-flowing sections of streams. Also found congregating at the base of small waterfalls. Feed partly on small prawns and juvenile fishes, but is basically an omnivore. Eggs are guarded and fanned by the male parent. Aquarium conditions: pH=7.2, H=8, 25?C water temperature, live food, egg layer, peaceful community fish, requires rock and plant cover.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLeiopotherapon aheneusFamilyTerapontidae (Grunters or tigerperches)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length13.0Common length8.0EnvironmentFreshwater; benthopelagicClimateTropicalDistributionOceania: Ashburton River to upper reaches of the Fortescue River, of the northwestern Australian coastal basins (Robe River, Nicholl's Spring, Millstream Station, Dale's Gorge in the Hamersley Range National Park, ).Conservation status (IUCN)Lower Risk: near threatened (LR/nt)Threat to humansHarmlessUsesAquarium: commercialResilienceHigh, 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