Author: Chernoff & Machado-Allison, 2005
Comments: Found in habitats with moderate to fast moving waters over rocky and sandy bottoms; in both acidic, black waters, as well as in clear, but slightly acidic waters.  In the Caura, it was found in rapids covered by vascular plants (Podostemonacae), as well as in small springs with sandy bottoms.  Found in the upper part of the water column in the main channel, usually in schools with other characid species.  Observed food items include several groups of terrestrial insects (Ref. 56366).