Blackspotted topminnow (Fundulus olivaceus)

Scientific name: Fundulus olivaceus Storer, 1845

The Blackspotted topminnow (Fundulus olivaceus) is a freshwater fish of the family Fundulidae. In the aquarium it needs water at 15–25°C (59–77°F).

Blackspotted topminnow care at a glance

Temperature: 15–25°C (59–77°F)

Biology

Inhabits near surface of quiet to flowing water, usually near margins of clear, sandy to gravelly headwaters, creeks and small rivers. 9.7 cm max TL. Feeds on terrestrial arthropods, aquatic insects, small crustaceans, and diatoms. Spawning occurs over gravel. Not a seasonal killifish. Is easy to maintain in the aquarium.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name: Fundulus olivaceus
Family: Fundulidae (Topminnows and killifishes)
Order: Cyprinodontiformes (Live bearers, Killifishes and Rivulines)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 8.0
Common length: 7.5
Environment: Freshwater; benthopelagic; non-migratory
Climate: Temperate
Distribution: North America: Mississippi River basins from eastern Tennessee, western Kentucky, southern Illinois and central Missouri south to Gulf of Mexico (west to central Oklahoma) in the USA; Gulf Slope drainages from Chattahoochee River in Georgia to Galveston Bay in Texas, USA.
Conservation status (IUCN): Not Evaluated
Threat to humans: Harmless
Uses: Aquarium: commercial
Resilience: High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)