HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsOrangetail shiner Orangetail shiner (Pteronotropis merlini) Scientific name: Pteronotropis merlini Suttkus & Mettee, 2001 The Orangetail shiner (Pteronotropis merlini) is a freshwater fish of the family Cyprinidae. In the aquarium it needs water at 12–23°C (54–73°F). Native range: North America, USA. Orangetail shiner care at a glanceTemperature12–23°C (54–73°F) BiologyDorsal soft rays (total): 7-9; Anal soft rays: 8 - 11; Vertebrae: 36 - 38. Body very deep. Caudal fin and most of the anal fin on nuptial males are bright orange. Nuptial males have a chevron or lunate-shaped blotch of dark pigment slightly separated from the posterior end of the dark lateral band. Anterior rays of dorsal fin fall short of the tips of the posterior rays in the depressed fin.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePteronotropis merliniFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length5.4EnvironmentFreshwater; pelagicClimateSubtropicalDistributionNorth America: USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026