When I build my 150 gallon tank, do I build the tank first, all 5 sides of glass, then slide it into a frame and stabilize the frame with steel cross braces, OR do I build the frame, put in the bottom piece of glass, and start to silicone in sides one by one? It seems pretty tough either way to get 90 degree corners all the way around. I looked on SuperNate's site, and am still a little confused about it, also, how unsafe is 3/8 inch glass if it's 24" high? Is that just a factor of safety, or will it seriously break as soon as I fill my tank? If I can make my tank 24" high, that's an extra 30 gallons, a little more breathing room for the fishies. Hopefully some pros out there can help me!!