When we first got our iguana, we read that it was ok to use a heat rock. We did. I tested it and it seemed just fine. After about 4 months, one day I noticed a "raw" place on the base of his tail near his vent. We went to the vet and it turned out to be a burn from the heat rock. My poor iguana suffered because back then heat rocks were the thing to use. I would never use one again. I learned an expensive( for me) and painful ( for iggy pop) lesson. Noone can tell you what to do. We can give you our opinions. A UTH is about $15-$18.... most vets are a whole lot more then that so why take a risk. Best of luck with your little guy.
