HomeFish encyclopediaRay-finned fishesPerch-like fishCichlidsNorthern checkmark cichlid Northern checkmark cichlid (Theraps intermedius) Scientific name: Theraps intermedius G?nther, 1862 The Northern checkmark cichlid (Theraps intermedius) is a freshwater fish of the family Cichlidae. In the aquarium it needs water at 26–30°C (79–86°F). Native range: Central America, Atlantic slope, in the Grijalva and Usumacinta drainages in Mexico, Guatemala and Belize. Northern checkmark cichlid care at a glanceTemperature26–30°C (79–86°F) BiologyInhabits moderate flowing waters of the middle and upper river valleys. Occurs in small groups, usually 10-30, staying relatively close to large rock formations.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameTheraps intermediusFamilyCichlidae (Cichlids)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length20.0EnvironmentFreshwater;; pH range: 7.5 - ?; dH range: 10 - 30 benthopelagicClimateTropicalDistributionCentral America: Atlantic slope, in the Grijalva and Usumacinta drainages in Mexico, Guatemala and Belize.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, 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