Would it be safe to bring in a dry log from out side and put it in my terrarium with my T or dose this pose a threat to my T‘s health?
It can pose a threat, depending on if it came from a part of the yard that may have been treated with chemicals. It could also have mites or other microorganisms living in the wood. Your best bet is to sterilize the branch before you put it in with your T. There are different methods of doing this- you can boil it in water, or bake it in the oven to kill anything that could be harmful. You'll want to thoroughly clean it first to make sure any chemicals are gone.
It might, just bye one at the pet store for $1:00
