Not experienced with them, but the scient name coreponds with the Gar Characin.
It's an agressive fish used to fast currents so you'll have to give it plenty of swimming space with a current produced by your filter.
Tank setup requires dense planted areas. This fish will feed on other fish and invertebrates. It's not really a good choice for community aquariums.
Ph neutral, hardness 10dh, 26ºC (79ºF)