Hart's rivulus (Rivulus hartii)

Scientific name: Rivulus hartii Boulenger, 1890

The Hart's rivulus (Rivulus hartii) is a freshwater fish of the family Rivulidae. In the aquarium it needs water at 22–26°C (72–79°F). Native range: South America, Caribbean coastal river basins.

Hart's rivulus care at a glance

Temperature
22–26°C (72–79°F)

Biology

Occurs at the foot of waterfalls, in swamps, streams and ponds. Eaten in its native range and exported for the ornamental trade. Not a seasonal killifish. Is difficult to maintain in aquarium. Has been observed to hunt insects from overhanging vegetation by jumping out of the water; has also been observed to travel on land and feed on insects in wet weather. Oviparous.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Rivulus hartii
Family
Rivulidae (Rivulines)
Order
Cyprinodontiformes (Live bearers, Killifishes and Rivulines)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
10.0
Environment
Freshwater; brackish; benthopelagic; non-migratory
Climate
Tropical
Distribution
South America: Caribbean coastal river basins.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Uses
Fisheries: commercial; aquarium: commercial
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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