I just scooped some nice mollys, etc. from a small local spring here in N Florida.
Go to your local lake/pond/river/whatever. Do some chumming. Breadcrumbs, etc. Scoop with net, and see what you got. I ended up wtih a few species... need to post a pic for an ID on one, but the others are the native molly and gambusia. Think the one I need ID on is a dace of some sort.