These little guys look like the neon tetra but in my opinion are so much nicer. These fish can be kept in nano tanks as well as large tanks but care should be given for compatible tank mates, for them not to be eaten. They are very sensitive to high nitrates and other metabolic waste.
Max size 1.5 inch
Temp 73-82F
PH 5-7
Hardness 0-10dGH