Hi - I found a small turtle (painted I believe) in the middle of my driveway. No larger than a half dollar. No idea where he would have come from or where he might have been going. Just glad I didn't t smash him with my car. I have him in the garage in a tub and he seems to be doing fine. I bought some turtle pellets from the pet store but he seems to prefer flies that I swap and put in his tub. I have a small fish pond (apx 10 x 10 x 2'). Would he thrive in that environment or could he be kept in the tub?