So recently I've been wanting to expand my hobby as a fish keeper, and really just wanted larger and more aggressive fish as most fish hobbyists do. Being that I own two ten gallon tanks and one twenty-nine gallon, I really want a large, and more beefy tank to keep larger and more fish in. That being said I don't want to buy a tank, but more or less make my own. I've seen numerous tutorials on how to make the stand and tank, and I have knowledge in woodworking and other essential techniques that would be needed to make it. The only question I have is how large of a tank would I need to house several large Oscars, or other fish such as those rainbow bass I've seen. I want to do live feedings as well as dry. Please comment with how many gallons the tank would need, and possible dimensions on a large and comfortable environment for these fish to live in.