HomeFish encyclopediaRay-finned fishesLive bearers, Killifishes and RivulinesSplitfinsZacapu allotoca Zacapu allotoca (Allotoca zacapuensis) Scientific name: Allotoca zacapuensis Meyer, Radda & Dom?nguez-Dom?nguez, 2001 The Zacapu allotoca (Allotoca zacapuensis) is a freshwater fish of the family Goodeidae. In the aquarium it needs water at 17–20°C (63–68°F). Native range: North America, Zacapu, Michoac?n, Mexico. Zacapu allotoca care at a glanceTemperature17–20°C (63–68°F) BiologyDorsal spines (total): 0; Dorsal soft rays (total): 18-20; Anal spines: 0; Anal soft rays: 12 - 13; Vertebrae: 30 - 32. Abdomopodium rays 2-7 thickened basally and curved anteriorly; series of 10-14 dark brown pigmented v-shaped vertical bars along sides; adult males with dark brown area surrounding about and in front of genital region; dark brown abdominal pigmentation.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAllotoca zacapuensisFamilyGoodeidae (Splitfins)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length3.0EnvironmentFreshwater;; pH range: 7.0 - 7.0 demersalClimateTropicalDistributionNorth America: Zacapu, Michoac?n, 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