Austrolebias nigripinnis (Regan, 1912)
Blackfin pearlfish
Austrolebias nigripinnis
photo by Loureiro, M.

Family:  Rivulidae (Rivulines), subfamily: Cynolebiinae
Max. size:  7 cm TL (male/unsexed); max. reported age: 1 years
Environment:  benthopelagic; freshwater; pH range: 6 - 7; dH range: 5 - 12, non-migratory
Distribution:  South America: Lower ParanĂ¡ and Uruguay River basins.
Biology:  Feeds on worms, crustaceans and insects (Ref. 7020). Bottom spawner, 2-4 months incubation. Is easy to maintain in the aquarium (Ref. 27139).
IUCN Red List Status: Near Threatened (NT); Date assessed: 19 February 2021 (B2b(i,ii,iii)) Ref. (130435)
Threat to humans:  harmless

Source and more info: For personal, classroom, and other internal use only. Not for publication.