i am currently using a day lamp and a night lamp and came to the conclusion real quick that it wasnt going to work for humidity issues. i bought an uth and im going to put it on tonight. my question is do i have to have a thermostat imediatly or can i just plug it in and stick it on there? also, i have a accurite temp guage that measures both sides of the tank, do i need to put the thermometer on the glass around where the uth is to moniter the heat? also where should i put the uth as far as right under his hide or next to it?