obviously cheap ones haha. i was thinking maybe silver dollars? they would be going in a tank with a pair of cuban cichlids, a male texas cichlid, and a jardini. i just need some dithers that are fast enough to get away if the sh*t hits the fan.
Depends on how monster your fish are, but I have a group of assorted rainbows with mine... I use the larger growing rainbow species like boesemani and turquoise, etc., obviously... not the smaller ones like furcata.