Quote Originally Posted by JLC
They are excellent for keeping snakes in. Just make sure you put some holes in them for ventilation...and you make sure the lid is secure....meaning tightly fitted around all edges and corners. It's astonishing what tight, tiny openings these guys can squeeze themselves through. I use big, metal paper clamps to hold my lid secure.
i use mine without the lids and i didnt put any holes in it. i put runnings along the walls of my rack system for the lip to sit on with about a eighth of an inch gap for circulation. temperature and humidity is correct so it seems to be working good.