Hello, I am in the process of building a glass tank and Im having trouble finding a safe thickness for the glass, I've looked online on thickness calculators without luck in getting a consistent answer. The dimensions will be 72" x 24" x 16" and it will be designed as a frag tank. I was thinking of doing 3/8" thickness because the height is pretty low but I'm starting to think that won't cut it, now I'm thinking half inch just to be safe. Can anyone help? Any thoughts? Thanks.