VA looks to be more forgiving than WY by a far margin. So your main concern is going to be cost. Big tank, lots of food and lots of filtration. You'll probably want to do a heavily planted tank to lower the stress on the fish. Lighting should be cheap, basic plant fluorescents to keep the plants alive without being too bright and bothering the fish. Plants will also help with nutrient uptake and make cut a bit on the algae side. The less 'stuff' in the water the less algae you should have. One of the parts of natural filtration.
Fish, especially wild ones, won't be tame no matter what you do. They may get used to being fed but you won't over-ride their natural instincts to feed. The only way to keep prey/predators in the same tank is to make sure the predator is full, constantly. And then they may still eat what you don't want them to eat. If something triggers their strike instinct it's getting hit. And a prey animal knows everything is out to get it so even if the predator has no interest in it because it stuffed, it doesn't know. So the little guys will be living in constant stress if they can't escape the immediate area. Lots and lots of hiding places will help but it won't eliminate the stress entirely.
How about a big outdoor pond instead of a tank? Cooler imo (I really want a pond), cheaper, probably healthier for the fish.
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