Lyrefin pearlfish (Simpsonichthys boitonei)

Scientific name: Simpsonichthys boitonei Carvalho, 1959

The Lyrefin pearlfish (Simpsonichthys boitonei) is a freshwater fish of the family Rivulidae. In the aquarium it needs water at 20–24°C (68–75°F). Native range: South America, Upper Paran? River basin in Brazil.

Lyrefin pearlfish care at a glance

Temperature: 20–24°C (68–75°F)

Biology

Prefers pH=6.6, Hardness=6, temp.=24?C with rocks, plants and driftwood in the aquarium environment. An egg laying, peaceful community fish. Bottom spawner, 2 months incubation. Is difficult to maintain in aquarium.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name: Simpsonichthys boitonei
Family: Rivulidae (Rivulines)
Order: Cyprinodontiformes (Live bearers, Killifishes and Rivulines)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 5.5
Environment: Freshwater; benthopelagic; non-migratory
Climate: Tropical
Distribution: South America: Upper Paran? River basin in Brazil.
Conservation status (IUCN): Vulnerable (VU) (B1+3bd)
Threat to humans: Harmless
Uses: Aquarium: commercial
Resilience: High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)