I found a single dot sized mite yesterday. ONLY one, after a very close inspection. I took out a big piece of driftwood in the vivarium_a great place for possible others to hide, and now I don't see anything: phheewww! My frog doesn't have any mites on him, all my other animals are fine and healthy_so is it okay to just "let it go" with that one suspect? No harm no foul, ya' know?