Quote Originally Posted by TheSnakeGuy View Post
Your thermometer should be placed on top of your substrate because that's where you animal is. Unless you have a snake that likes to burrow you don't need to know the temp of the glass. Just make sure the top isn't over 95. Somewhere between 88-92 is ideal.
You want the hottest spot the snake can come into contact with not to be over 95 degrees, doesn't matter IF your snake likes to burrow but when they will.