I came across a piece of 1/4in glass that is 81x34.5. I have never built an aquarium before but really want to. I have always loved the look of the square tanks and was thinking of doing a tank that would be 34.5x34.5 and 11.5 tall. That would use almost all the glass but i'm not sure if i would need a brace or not. It would be the equivalent of a 60g. Also how hard is this to do. And what all would i need. Thanks.