HomeFreshwater aquarium fishPuffers, gobies & brackish fishNorthern trout gudgeon Northern trout gudgeon (Mogurnda mogurnda) Scientific name: Mogurnda mogurnda Richardson, 1844 The Northern trout gudgeon (Mogurnda mogurnda) is a freshwater fish of the family Eleotridae that grows to about 17.5 cm (6.9 in). It is easy to keep and semi-aggressive, suits community aquariums and needs a tank of at least 150 L (40 US gal), water at 24–26°C (75–79°F) and a pH of 6.0–7.8. Native range: Oceania, Australia and Papua New Guinea. Northern trout gudgeon care at a glanceCare levelEasyTemperamentSemi-aggressiveCommunity tankGoodAdult size17.5 cm (6.9 in)Minimum tank150 L (40 US gal)Temperature24–26°C (75–79°F)pH6.0–7.8DietOmnivore. Accepts flakes, frozen foods and live foods. BiologyDorsal spines (total): 8 - 10; Dorsal soft rays (total): 10-13; Anal spines: 1; Anal soft rays: 10 - 13Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMogurnda mogurndaFamilyEleotridae (Sleepers)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length17.5Common length10.0EnvironmentFreshwater;; pH range: 6.0 - 8.0; dH range: 9 - 19 benthopelagicClimateTropicalDistributionOceania: Australia and Papua New Guinea.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More puffers, gobies & brackish fishPeacock gudgeonTateurndina ocellicaudaStigmatogobius sadanundioMalabar pufferfishCarinotetraodon travancoricusAtlantic mudskipperPeriophthalmus barbarusViolet gobyGobioides broussonnetiiIndian glassy fishParambassis rangaSee all puffers, gobies & brackish fish Can it live with...?Northern trout gudgeon and Atlantic mudskipperNorthern trout gudgeon and Banded archerfishNorthern trout gudgeon and Black ghostNorthern trout gudgeon and Black sharkminnowNorthern trout gudgeon and Blackbarred limiaNorthern trout gudgeon and Bleeding-heart tetraNorthern trout gudgeon and Bloodfin tetraNorthern trout gudgeon and Bluespotted corydorasNorthern trout gudgeon and Brilliant rasboraNorthern trout gudgeon and Butterfly splitfinNorthern trout gudgeon and Chinese suckerNorthern trout gudgeon and Clown barbNorthern trout gudgeon and Clown loachNorthern trout gudgeon and Clown rasboraNorthern trout gudgeon and Crescent bettaNorthern trout gudgeon and Dwarf botiaNorthern trout gudgeon and Dwarf rainbowfishNorthern trout gudgeon and Eel LoachNorthern trout gudgeon and Eyespot pufferfishNorthern trout gudgeon and Forktail rainbowfishNorthern trout gudgeon and Fresh water puffer fishNorthern trout gudgeon and Gangetic leaffishNorthern trout gudgeon and Garnet tetraNorthern trout gudgeon and Glass catfishNorthern trout gudgeon and Globe fishNorthern trout gudgeon and Glowlight tetraNorthern trout gudgeon and Goldeneye cichlidNorthern trout gudgeon and Green pufferfishNorthern trout gudgeon and Head-and-taillight tetraNorthern trout gudgeon and Horseface loach 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