Originally Posted by Hannah81
You need to get glass that fits the runners!! It doesn't matter how thick it is, the space between the 2 sheets will be the same whether it's 6mm or 4mm glass.
And a baby corn can get through that gap.
4mm toughened glass will be fine for a corn snake. You can put airhose down the egdes of the glass where it overlaps, this will help block off the gap.
I would get the right size glass to fit the runner but are you saying that baby cornsnakes can get thru vivarium sliding door gaps?