Hmm yeah Tiger barb is on the right track. A friend suggested red tail shark. But I want to keep the tank american themed so cyprinids are mostly out of the question. Maybe some south american killies.
When you say "a bunch of different species", do you mean, singles or couples of each species?
These had no threats.
Swam together good enough for me
I had 200 black neons and about 35 bentosi tetra I there if I remember correctly.wow -- maybe I should be doing one big school of the same species. Is that what you had?
They need brackish.how about a pike kilifish? that should keep them moving. But, you'll have to have some guppie fry for it to survive.