Since my tank size is pretty much fixed for the foreseeable future and a rescape is long overdue, I am making a new tank out of extra clear glass. The current tank is 30x18x16 inches LBH made out of 8mm glass and is rimless and braceless. The new tank will be 30x18x18 also with 8mm extra clear glass on all 4 sides and the base will be 12mm regular glass. Can I go ahead with the build without adding braces even though I have increased the height by 2 inches ?