Hey gang. I just purchased a 200 ish gallon tank from a really nice guy. I saw it full of water, no leaks, seems fine. after I got it home I noticed there are no cross braces on the top or the bottom. Its 72"x24"x28". It has the usual plastic frame around top and bottom and there is no evidence that any braces have been removed. Its drilled so i am able to measure the thickness of the glass, which is 3/4 of an inch. (thats right, I said .75") I'm a wee bit nervous about this monstrousity bowing out when filled. Am I just a Nervous Nellie or is the massive thickness of the glass making up for the lack of bracing?? Do I have to silicone a piece of 3/4 inch glass across the top? Will that do anything other than look cool?? I would appreciate any wisdom from all comers on this topic! thanks guys!!