I normally make all my own terrariums, but this one was already made and established by a friend. It's design matches all my own exactly, because we both have our glass cut by a good mutual friend. He had to let go of it and I happily snatched it up and reset it up. The glass is 1/4" glass, and you are correct, most of the rocks in this build are not real.Really nice!
Did you make the vivarium yourself or did you have someone else build it? How thick is the glass on a critter that large?
I like the look of your rocks in the back. I am guessing they are not actually rocks though, what are they?