I havent seen one... not easy to get info on so, i would think that they are pretty rare in the hobby..
Some info from OPEFE
The species are generally found in areas known to be calm (lakes and pockets of water). The juveniles are mostly found in heavy vegetation, while the adults are found in smaller canals Rio Cuyuni-Essequibo. Their eating habits are variable ontogenetically and fixed. Juveniles generally consume micro-crustaceans, insects and occasionally small seeds. The adults are predators primarily during the summer, then consume fruits and seeds during the rainy season when the rainforest is flooded. It is a clear water species where it is sympatric as juveniles with P. cariba and S. rhombeus. The area also undergoes a period of a dry season from October - March. The rainy season runs from April - September. Young specimen's have bright silver bodies and may have a red, orange, or yellow anal fin with a dark border. There is a small oval humeral spot behind the opercle, fins are hyaline. The caudal fin has a terminal black band or simply a dark "V". The species is primarily found in Venezuela, however some samples have been found in other localities