Also known as Schultz's Signal Tetra, Schultz's Tetra.
Found in lakes and rivers of the Araguaia river basin.
They feed on algae, crustaceans and invertebrates.
Length - 2.1cm
Depth - ?m
Widespread South America
Popular aquarium fish!
Related to 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. (edit) Ref: http://www.fishbase.se/summary/46316