Zebras aren't tetras...ClearEyes said:In that size, you can probably do a max of 2 schools, maybe 3, I'll let some others chime in. Cardinals, neons, rummy nose, zebras are all good choices I think. I think most tetras can live happily together.
Agreed, every other tetra in the Characins group works besides Congos.BMcK said:I would do 2 schools with more in each school in that size tank. It will look better.
As far as what types...black skirts, cardinal, neon (all varieties), glowlight, rummys, diamonds. Most tetras will do fine together, some are a little nippier than others. Congos I'd say are too big as they need more swimming room