Threespot headstander (Pseudanos trimaculatus)

Scientific name: Pseudanos trimaculatus Kner, 1858

The Threespot headstander (Pseudanos trimaculatus) is a freshwater fish of the family Anostomidae. In the aquarium it needs water at 23–27°C (73–81°F). Native range: South America, Amazon River basin. Reported from Argentina.

Threespot headstander care at a glance

Temperature: 23–27°C (73–81°F)

Biology

In schools of 10-50 specimens in deeper water; feeds on plants.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name: Pseudanos trimaculatus
Family: Anostomidae (Headstanders)
Order: Characiformes (Characins)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 12.0
Environment: Freshwater; benthopelagic
Climate: Tropical
Distribution: South America: Amazon River basin. Reported from Argentina.
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.)