Your hides are 2 different sizes, I would change so both are the smaller size. Also if you change the hide there will be more open space so I would put maybe a fake leaves on the floor. Another thing I would do for security is cover the back and 2 sides of the tub with construction paper or something for added security. Thermostat probe should be between the uth and bottom of tub and a digital thermometer with probe under paper towel over uth. Acurite 00891 is a good digital thermometer with probe. You can put probe under paper towel and run wire under paper towel toward the cool side, that will give you hot temp cool temp and humidity. The reason you don't want the thermostat probe inside is bc it can be urinated on, water spill, or moved which can cause inaccurate reading. Also I would put the thermostat temp so it is 88 under paper towel bc when your snake lays on uth it will actually be warmer from the snakes weight. For your humidity I would put more holes in tub to lower to 60%-65%.
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