I was wondering the same thing, I have a standard 55 pine stand and would only be able to fit a 10 gallon into it. I really want to fit a 20 or 30 long under there but would need to remove the center brace in the back of the tank. Would I be ok leaving it out? Or maybe throwing a horizontal piece of plywood to disperse the weight to the corners. My last thought would be to make an L type bracket to attach to where the old one was, thus allowing it to be farther back and having room for the sump. Any thoughts? Other ideas? Please let me know. Thanks