Ok time to be honest with myself. I had my old 220 setup in a house built in the 1930's(ish) with a raised foundation. I actually started a thread asking if my floor would hold it. I got the classic responses both yes and no. I decided that if I put it on a load bearing wall perpendicular to the floor joists it would be fine. Well between the original hardwood flooring and the foundation my house has a decent amount of noises I chalk up to"settling". Well about a year anf a half went by with no issues and I slept better as time went on. Well one night I was sleeping on the couch in the living room (don't ask why) and I was jarred awake by a terrible noise. It sounded like my fire eel knocked over one of my huge rocks which I thought was impossible. So I jumped up half asleep, checked all sides of the tank. Looked underneath. Looked all around for a cause of the noise. I didnt see anything out of the ordinary, so I assumed it was the abrubt end to a dream. This isnt far fetched as I sleepwalk regularly amd have crazy dreams. Well I went to work the next day and wasnt there an hour before my wife call hysterical because my tank exploded. looking back I would be willing to bet the noise what the floor settling or even just the sagging floor eventually becomming to much causing my center brace to fail. Causing the front pane to bow and eventually sheer off completely. I cant prove this, but I am willing to be the sacrificial lamb if it will save even one person from the hassle I went through...