Author: (Duncker, 1910)
Comments: Occupies the upper middle strata of the water column along the sides of slow-flowing, perennial rivers and usually occurs among marginal weeds and roots (Ref. 6028).  Probably feeds on zooplankton in the wild.  Ovoviviparous (Ref. 205).  The male carries the eggs in a brood pouch which is found under the tail (Ref. 205).  Males may be brooding at 8.5 cm SL.