HomeFreshwater aquarium fishPuffers, gobies & brackish fishPeacock gudgeon Peacock gudgeon (Tateurndina ocellicauda) Scientific name: Tateurndina ocellicauda Nichols, 1955 The Peacock gudgeon (Tateurndina ocellicauda) is a freshwater fish of the family Eleotridae that grows to about 7.6 cm (3 in). It is easy to keep and peaceful and needs a tank of at least 40 L (11 US gal), water at 22–25.6°C (72–78°F) and a pH of 7.0–7.8. Native range: Oceania, Eastern Papua New Guinea. Peacock gudgeon care at a glanceCare levelEasyTemperamentPeacefulAdult size7.6 cm (3 in)Minimum tank40 L (11 US gal)Temperature22–25.6°C (72–78°F)pH7.0–7.8DietOmnivore. Accepts flakes and pellets. BiologyDorsal spines (total): 8 - 9; Dorsal soft rays (total): 13-14; Anal spines: 1; Anal soft rays: 13 - 14Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameTateurndina ocellicaudaFamilyEleotridae (Sleepers)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length7.5EnvironmentFreshwater;; pH range: ? - 7.0; dH range: ? - 7 demersal; non-migratoryClimateTropicalDistributionOceania: eastern Papua New Guinea.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: potentialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More puffers, gobies & brackish fishNorthern trout gudgeonMogurnda mogurndaAtlantic mudskipperPeriophthalmus barbarusStigmatogobius sadanundioMalabar pufferfishCarinotetraodon travancoricusIndian glassy fishParambassis rangaTetraodon schoutedeniSee all puffers, gobies & brackish fish Can it live with...?Peacock gudgeon and Atlantic mudskipperPeacock gudgeon and Banded archerfishPeacock gudgeon and Eyespot pufferfishPeacock gudgeon and Fresh water puffer fishPeacock gudgeon and Globe fishPeacock gudgeon and Green pufferfishPeacock gudgeon and Indian glassy fishPeacock gudgeon and Malabar pufferfishPeacock gudgeon and Northern trout gudgeonPeacock gudgeon and Silver moonyPeacock gudgeon and Spotted scatPeacock gudgeon and Violet goby SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0. Aquarium care parameters compiled, checked and converted to metric and imperial units by Guppies.za.net.Last updated 28 September 2026