I currently have a 29g with Central mudminnows. I have enjoyed Ohio native tanks very much in the past with darters, creek chubs, dace, madtoms, creek chubs, mudminnows, suckers... All locally caught. I once set up an informative tank at a library in the kids section.
Fun thing about natives is if you are always discrete when feeding, you can train them not to identify you with food so they always act very naturally.