HomeFreshwater aquarium fishSouth & Central American cichlidsYellow cichlid Yellow cichlid (Thorichthys helleri) Scientific name: Thorichthys helleri Steindachner, 1864 The Yellow cichlid (Thorichthys helleri) is a freshwater fish of the family Cichlidae that grows to about 14 cm (5.5 in). It is easy to keep and peaceful and needs a tank of at least 150 L (40 US gal), water at 20–27°C (68–81°F) and a pH of 7.3–8.5. Native range: Central America, Atlantic slope, from the Coatzacoalcos River to the Usumacinta River drainage, Mexico. Yellow cichlid care at a glanceCare levelEasyTemperamentPeacefulAdult size14 cm (5.5 in)Minimum tank150 L (40 US gal)Temperature20–27°C (68–81°F)pH7.3–8.5Hardness5–20 dGH (89–357 ppm)DietOmnivore. Accepts flakes, frozen foods and live foods. BiologyInhabits lower and middle river valleys.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameThorichthys helleriFamilyCichlidae (Cichlids)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length14.5EnvironmentFreshwater; benthopelagicClimateTropicalDistributionCentral America: Atlantic slope, from the Coatzacoalcos River to the Usumacinta River drainage, Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More south & central american cichlidsCryptoheros panamensisLowland cichlidHerichthys carpintisApistogramma nijsseniRed devilAmphilophus labiatusOscarAstronotus ocellatusRio Grande cichlidHerichthys cyanoguttatusSee all south & central american cichlids 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