The Bleeding Heart Tetra is located in the upper Amazon River basin on the border between the countries of Brazil, Colombia and Peru. It inhabits the banks with abundant vegetation of small and medium sized streams.
There is detectable sexual dimorphism in its fins. Males have a longer and more curved dorsal fin than females, and their anal fin ends in a point. Another difference is the colour, with the male's shades being more intense than those of the female.
This is a quiet and very sociable species that lives in numerous banks where the dominant individuals are kept in the central area of the bank surrounded by other less relevant individuals to be protected from possible attacks.
The clutch, which they deposit on leaves, consists of 300-400 eggs which will hatch in 24-36 hours.