Bondi Tetra

Found in schools, over small creeks, streams, and tributaries, with vegetation cover.
South America - Orinoco River Basin

Found extensively in the aquarium trade.
Same family as Piranha's

Piranha's have a fearsome reputation (because of James bond 007) as a voracious predator that can strip flesh off bones in minutes, although they have razor sharp teeth they are in fact quite timid scavengers.