HomeFreshwater aquarium fishOddballs & predatorsElectric eel Electric eel (Electrophorus electricus) Scientific name: Electrophorus electricus Linnaeus, 1766 The Electric eel (Electrophorus electricus) is a freshwater fish of the family Gymnotidae. In the aquarium it needs water at 23–28°C (73–82°F). Native range: South America, Amazon and Orinoco River basins, and related areas in northern South America. Electric eel care at a glanceTemperature23–28°C (73–82°F) BiologyDorsal spines (total): 0; Dorsal soft rays (total): 0. Body elongated and cylindrical, almost without scales; head flattened; mouth large with one row of conical teeth on each jaw; presence of three abdominal pairs of electric organs; body color dark with anterior ventral part yellowish.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameElectrophorus electricusFamilyGymnotidae (Naked-back knifefishes)OrderGymnotiformes (Knifefishes)ClassActinopterygii (Ray-finned fishes)Maximum length250EnvironmentFreshwater; benthopelagicClimateTropicalDistributionSouth America: Amazon and Orinoco River basins, and related areas in northern South America.Conservation status (IUCN)Least Concern (LC)Threat to humansOtherUsesFisheries: commercial; aquarium: public aquariumsResilienceMedium, minimum population doubling time 1.4 - 4.4 years (tm=3; tmax=6 (captive); Fec=17,000) More oddballs & predatorsAlfaro cultratusIndonesian snakeheadChanna micropeltesLesser spiny eelMacrognathus aculeatusAfrican bonytongueHeterotis niloticusParachanna obscuraEel LoachPangio anguillarisSee all oddballs & predators SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026