HomeFreshwater aquarium fishRainbowfish & killifishYucatan flagfish Yucatan flagfish (Garmanella pulchra) Scientific name: Garmanella pulchra Hubbs, 1936 The Yucatan flagfish (Garmanella pulchra) is a freshwater fish of the family Cyprinodontidae. In the aquarium it needs water at 22–28°C (72–82°F). Native range: Central America, coastal habitats of Yucat?n Peninsula in Mexico and Belize. Yucatan flagfish care at a glanceTemperature22–28°C (72–82°F) BiologyDorsal soft rays (total): 15-17; Anal soft rays: 8 - 10. In females, vertical bars become narrower and more defined with age; in males, bars become numerous and then break into reticulated pattern.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGarmanella pulchraFamilyCyprinodontidae (Pupfishes)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length4.0EnvironmentFreshwater; brackish; demersal; non-migratoryClimateTropicalDistributionCentral America: coastal habitats of Yucat?n Peninsula in Mexico and Belize.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More rainbowfish & killifishJavanese ricefishOryzias javanicusBlackfin pearlfishAustrolebias nigripinnisForktail rainbowfishPseudomugil furcatusDwarf rainbowfishMelanotaenia praecoxLake Kutubu rainbowfishMelanotaenia lacustrisTami River rainbowfishGlossolepis pseudoincisusSee all rainbowfish & killifish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026