So I did plenty of searching. Seems all DIY stands are pretty simple. My problem is that I have a 90g on a All Glass stand. I want to add a fuge, but don't really have much room. Tried to figure out how to do it till I thought about a new stand. My tank just sits in a room. Doing a remote setup is not feasible. What I would like is a 55g sump/fuge under my tank. Since the inside dimensions need to hold a 55g, the stand will have to be bigger than my tank. I don't have a problem with that. Are there any problems with a stand bigger than the tank as long as the supports are still holding the tank??? I would really like to have more room for storage and the sump. So some little selves on the end maybe. Also I want 36" height inside to have room for skimmer and such. It would make tank maintenance a little harder, but sump maintenance much easier. More room to mount stuff. I don't think 6" more on 3 sides would be excessive. Can anyone think of any problems with that??? The only other question.... is sealing up the inside a big deal. Figured make a little tub with 2x4s, seal everything up real good, and give a little protection in case of any potential overflow. Does it matter??? Thanks for any input you might have.