I have an 80 gallon tank with north american native fish. More specifically, fish native to Georgia where I am from. I did not catch them myself, I live in CA now and the laws here don't favor that. Would have liked the fun and money saving aspects of that though. I bought what I wanted off aquabid, there are also a few online retailers that carry natives such as Sachs Aquaculture.
I have sand substrate and lots of rocks, pebbles. The tank is planted with jungle val, hornwort and some crypts because I was sticking with native plants as well. Right now I have a school of rainbow shiners, some bluefin killies, some golden topminnows and a few blue spotted sunfish. I have some eastern dollar sunfish coming and would like a few madtoms and darters to round it out. I referenced a list of native species for Georgia maintained by the Ga dept of fish and wildlife when I was looking at species. All these fish get along great. The Eastern Dollars have the potential to be more problematic since they get a little larger but have a small mouth so hoping it will work. If not they will go out in a pond in the backyard.
Tank is unheated, which saves a bit in running it. NAtives should be just fine in room temp.