HomeFish encyclopediaRay-finned fishesPerch-like fishSleepersAru gudgeon Aru gudgeon (Oxyeleotris aruensis) Scientific name: Oxyeleotris aruensis Weber, 1911 The Aru gudgeon (Oxyeleotris aruensis) is a freshwater fish of the family Eleotridae. Native range: Asia and Oceania, New Guinea and northern Australia. BiologyDorsal spines (total): 7; Dorsal soft rays (total): 12-14; Anal spines: 1; Anal soft rays: 10 - 12Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOxyeleotris aruensisFamilyEleotridae (Sleepers)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length16.0Common length10.0EnvironmentFreshwater; demersalClimateTropicalDistributionAsia and Oceania: New Guinea and northern AustraliaConservation status (IUCN)Not EvaluatedThreat 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