Thanks esshup.
I phrased that question poorly.
Yes, I meant to set up the aquarium like a "proper" aquarium arrangement, yet below the level of a tank aquaculture system.
I meant to ask if stream-adapted minnows would survive/thrive in a correctly maintained aquarium.
I just wanted to keep a few in an aquarium to observe feeding behaviors, breeding behaviors, etc. I assume feeding will work to some degree. Breeding will be problematic outside their preferred conditions, but who knows what I will observe.
I agree with you that the "live" saltwater tanks are awesome. However, the set up and maintenance on some of those is about equal to a small pond!
