I built a hex tank with 5mm glass. It was about 90 gallons (20x18 inch panels) on a 3/8" base. I euro braced the top and bottom with a 3" rip of 5mm glass. The thing held just fine for the year i used it. I used ge door and window silicone (use the scs 1200 by ge for yours). So i guess what im saying is, you can do alot with pretty weak glas. I should also tell you that it was a fresh water system because (altho it held GREAT) i wouldnt trust my precious saltwater in a 5mm tank. Just wasn't worth it to me. Im sure it would b fine, i just didn't trust my kids not to hit the tank.
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12-12-2012, 11:53 PM
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