The Pseudanos gracilis lives in the benthopelagic, freshwater, pH range: 7.0, dH range: 2 - 8, depth range 0 - 1 m environment.
example of the striped form of Pseudanos gracilis in his 1980 revision of the subfamily Anostominae. The fish in the photograph was an aquarium specimen that was deposited in the collection of the Smithsonian after its death. The collection locality is unknown. More
Pseudanos gracilis on Fish Mapper TSN 641623 (Taxonomic Serial Number) Retrieved on from the Integrated Taxonomic Information System online database. This is a cached copy. More
Kaksitäpläseisojakala in Finnish (suomen kieli)
Schlanker Kopfsteher in German (Deutsch)
Siroseisojatetra in Finnish (suomen kieli)
Vierfleck-Kopfsteher in German (Deutsch)