This is perhaps the meanest fish from the Amazon. Will bite keeper, nets, lures, and anything that moves. The burgundy coloured form is much nicer than the blue grey one from the Orinoco, and is supposed to get even larger.
Copella vilmae is a spectacular new splashing tetra, that shows some territorial behaviour. Great in a tank together with Apistogrammas, Crenuchus and larger Hyphessobrycon species!