The Bryconaethiops yseuxi lives in the pelagic, freshwater, pH range: 6.0 - 7.5, dH range: 8 - 18 environment.
Abstract: Bryconaethiops yseuxi Boulenger, 1899, originally described from "Haut Congo", is rehabilitated. The species was synonymized, successively with B. microstoma (Günther, 1873) and B. macrops Boulenger, 1920, subsequently rehabilitated, and then again considered as a junior synonym of B. microstoma. More