I know this question will cause lots of controversy. But; just wondering if anyone has tried to house goldfish with tropical fish? I have, for the past 3 months. When I moved from one province to another; I put all my fish together in one container, and that's how I left them. I know that goldfish are coldwater fish; but they seem to be doing just fine. They are housed with about 20 small tropical fish in a 45 gallon Bowfront.