All the talk about ites gets me really worried for my snakes.

I have 4 various snakes, All have been to the local exotic vet, and had well checkups in the last 6 months.

They get checked for and signs of an r.i, mites, a fecal for internal parasites, weighed and just generally looked over.

They all were cleared, BUT.... Being they were cleared is there still a chance of mites?? Where do they come from??

Do they appear From the substrate (I have/use aspen, forest floor and Eco earth). Is there only a chance of them appearing if I add another snake

That might have them? Any Info on this is appreciated!

Thanks

Jeff