HomeFish encyclopediaRay-finned fishesLive bearers, Killifishes and RivulinesSplitfinsBandfin splitfin Bandfin splitfin (Allodontichthys zonistius) Scientific name: Allodontichthys zonistius Hubbs, 1932 The Bandfin splitfin (Allodontichthys zonistius) is a freshwater fish of the family Goodeidae. In the aquarium it needs water at 21–25°C (70–77°F). Native range: Central America, Rio Calima, Mexico. Bandfin splitfin care at a glanceTemperature21–25°C (70–77°F) Species factsScientific nameAllodontichthys zonistiusFamilyGoodeidae (Splitfins)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length4.5EnvironmentFreshwater;; pH range: 7.0 - 7.7; dH range: 5 - 20 demersalClimateTropicalDistributionCentral America: Rio Calima, Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmless SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026