HomeFish encyclopediaRay-finned fishesPerch-like fishGobiesRedneck goby Redneck goby (Schismatogobius deraniyagalai) Scientific name: Schismatogobius deraniyagalai Kottelat & Pethiyagoda, 1989 The Redneck goby (Schismatogobius deraniyagalai) is a freshwater fish of the family Gobiidae. In the aquarium it needs water at 22–27°C (72–81°F). Redneck goby care at a glanceTemperature22–27°C (72–81°F) BiologyDorsal spines (total): 7; Dorsal soft rays (total): 9-10; Anal spines: 1; Anal soft rays: 8 - 9Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSchismatogobius deraniyagalaiFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length4.5Common length3.5Depth range0–1 m (0–3 ft)EnvironmentFreshwater; demersal; depth range 0 - 1 mClimateTropicalDistributionAsia: We River (Kelani basin), about 5 km upstream of the Kelani and Yatiyantota junction, Sri Lanka. Also in a tributary of the Gin River in the Kanneliya Forest Reserve. Philippines, Australia and India.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessUsesFisheries: of no interest; aquarium: 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