Best kept in schools like most Tetras. They can be a little boisterous at times, but make up for it with their beautiful silver body when it shimmers in the light.
They can grow quite large around 6cm and do well with larger fish like Silver Dollars & Silver Sharks.
As for most Tetras:
pH - 6 -7
GH - 50 - 100ppm
Temp - 24 - 26c