i have 1 ball python and 1 red tail boa i just checked my ball today and she really did not have any on her i gave her tank a good cleaning and soaked her for a little while my boa on the hand had a few more and in her hide cave there was a couple of what looked like eggs so i cleaned every thing and soaked her for a while and found some mites floating i really have no idea where they came from i had both of them for a almost 2 years and never had a problem