HomeFreshwater aquarium fishSouth & Central American cichlidsRam cichlid Ram cichlid (Mikrogeophagus ramirezi) Scientific name: Mikrogeophagus ramirezi Myers & Harry, 1948 The Ram cichlid (Mikrogeophagus ramirezi) is a freshwater fish of the family Cichlidae that grows to about 7.5 cm (3 in). It is moderate to keep and peaceful and needs a tank of at least 75 L (20 US gal), water at 27–30°C (81–86°F) and a pH of 5.0–6.5. Native range: South America, streams in Columbia and Venezuela. Ram cichlid care at a glanceCare levelModerateTemperamentPeacefulAdult size7.5 cm (3 in)Minimum tank75 L (20 US gal)Temperature27–30°C (81–86°F)pH5.0–6.5Hardness5–12 dGH (89–214 ppm)DietCarnivore. Accepts flakes, frozen foods and live foods. BiologyUsed in behavioral studies. Aquarium keeping: in pairs; minimum aquarium size 60 cm.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMikrogeophagus ramireziFamilyCichlidae (Cichlids)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length3.4EnvironmentFreshwater;; pH range: 5.0 - 6.0; dH range: 5 - 12 benthopelagic; non-migratoryClimateTropicalDistributionSouth America: Orinoco River basin, in the llanos of Venezuela and Colombia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interest; aquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (tm More south & central american cichlidsThreespot eartheaterSatanoperca daemonEmerald cichlidHypselecara temporalisCockatoo cichlidApistogramma cacatuoidesRedbreast acaraLaetacara dorsigeraFlag acaraLaetacara curvicepsRedhump eartheaterGeophagus steindachneriSee all south & central american cichlids Can it live with...?Ram cichlid and Cockatoo cichlidRam cichlid and Demon eartheaterRam cichlid and Goldeneye cichlidRam cichlid and Red discusRam cichlid and Redbreast acaraRam cichlid and Threespot eartheaterRam cichlid and UaruRam cichlid and Umbrella cichlid 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