Three species of tetra in northern South America are obviously close relatives to each other and often confused: Hyphessobrycon loretoensis from Peru, H. metae from Colombia, and H. peruvianus, again from Peru. From these, H. loretoensis has been portayed here: http://www.aquariumglaser.de/en/hyphessobrycon-loretoensis_de_1188.html.
Currently we were able to import the second Peruvian species once more, H. peruvianus, in wonderful, large specimens. It can be distinguished best from its close relative, H. loretoensis, by the coloration of the caudal fin. In H. peruvianus the black longitudinal band extends far in the caudal fin. Above and below it is often accompanied by red spots. The lobes of the caudal fin are hyaline. In H. loretoensis the black band ends shortly after the caudal fin origin. The caudal fin is completely red.
Regarding the aquarium maintanace there is no great difference between the two species, both are extremely beautiful fish that fit perfectly for any blackwater community tank.
For our customers: the fish have code 261453 on our stocklist. Please note that we exclusively supply the wholesale trade.
Lexicon: Hyphessobrycon: ancient Greek, means “small Brycon”. Brycon is another genus of tetras. peruvianus: means “originating from Peru”. loretoensis: after the Loreto province in Peru. metae: after the Rio Meta.
Text & Photos: Frank Schäfer