HomeFreshwater aquarium fishGuppies & livebearersBulldog goodeid Bulldog goodeid (Alloophorus robustus) Scientific name: Alloophorus robustus Bean, 1892 The Bulldog goodeid (Alloophorus robustus) 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, Lerma River basin, Mexico. Bulldog goodeid care at a glanceTemperature21–25°C (70–77°F) Species factsScientific nameAlloophorus robustusFamilyGoodeidae (Splitfins)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length12.0EnvironmentFreshwater; demersalClimateTropicalDistributionCentral America: Lerma River basin, Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercial More guppies & livebearersRedtail splitfinXenotoca eiseniBlackbarred limiaLimia nigrofasciataMosquitofishGambusia affinisSailfin mollyPoecilia latipinnaGuppyPoecilia reticulataGreen swordtailXiphophorus helleriiSee all guppies & livebearers SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026