Also known as Griem's Tetra, Goldspotted Rio.
Found in schools over coastal rivers.
They feed on crustaceans, plant matter and worms.
Length - 2.9cm
Depth - ?m
Widespread South America
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. Ref: http://www.fishbase.org/summary/10653