I really really do not get how you do not get this. You admitted the temp in the glass was 120 but on top of substrate was 90...therefore your argument is invalid. If for some reason Marshall decides to go under his substrate or even gets confused, as my 3 month old did the other day and got between layers somehow, he will be a cooked snake...and your digitL thermometer was going crazy? Yeh it was, probably telling you it's was saying 110!!!
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