Thats because your not allowing it to be. Several people including myself have suggested things about your set up & how it will not work easily for several reasons.. Every time you comments it doesn't have to do with our suggestions.. Its back onto the nonsense from the other nights Post.
Look at the sticky on "How to set up a glass enclosure"....
if you don't like that and want to do it your own way then you will have to work out the corks because we don't believe even though your setup looks cool it will work properly. Not to mention i said at least twice your snake will bust it all to hell & then you'll really come home to some crazy dangerous temps when a probe is hanging in a water bowl or something.
Good luck & take care.
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