"Provent-a-Mite", an effective treatment for invasive parasites...
Did you know it costs $20/can? It is very effective, however, and I used it for my collection a while back. I brought back some baby snakes from the Daytona Show that I thought were clean after two weeks and put them in my Herp Room to keep them warmer. Even though they were in separate cages, my whole collection became infected eventually when there was a mite hatch, and I had to treat the entire room.
Here's the proper procedure for using "Provent a Mite". Remember any kind of chemicals are going to be harmful to your animals if they ingest or inhale them. You must remove all your pet snakes and put them in separate containers while you disinfect their cages. Also remove any water or food containers and just wash them. Take the cage outdoors or in a garage to spray like I do. Make sure you don't inhale the spray, as it's not good for you either. Make sure the bedding is not more than an inch thick, so it won't protect the mites. Don't have any wood or other objects in the cage. Shake the can well and spray all over the bedding for 2 or 3 seconds, but don't lay it on too thick. Let mist fill cage and leave it out there overnight, or for 4hrs. minimum. After all is completely dry, put objects, water, snakes, back in cage.
Some will say that you don't have to wait more than a few minutes, up to an hr, for the cage to dry. Here's why you should be more cautious. This spray, as well as others, such as Black Knight and other vapors, can harm your snakes if they are inhaled or ingested. Some species are more sensitive to the sprays than others, especially if they have very thin skins. I have seen baby snakes die from exposure to recently sprayed cages. They will have seizures first. I don't like to take chances, so I make sure the spray is completely dry. I treat all my snake cages, leave overnight, put the snakes back the next day.
Now, here's a really important step. In ten to 14 days, you have to repeat the treatment, or else eggs will hatch out and you'll be infected again. Sprays do not kill the eggs. You have to do this treatment twice!! Then you will be free of mites until you infect your collection again 
Remember to take precautions to protect your collection, no matter how large or small, from infections by mites or anything else. I always quarantine new animals, no matter how nice or valuable they are, and no matter who I got them from, even my best friends. I now have a small portable lab where I test for mites and look for other infectious organisms. I try to keep new animals in quarantine at least a month. I also use Proven a Mite as a preventative. If I know I'm bringing in new animals, I spray the appropriate holding containers, cages, etc, before I get the animals, and transfer them to these treated containers as soon as I get home, or even at a show. If they do have mites the mites die. Don't forget to repeat the process two weeks later in case there were eggs, which is what got me the first time. This will protect the rest of your collection and, so far, no animals I've put through this procedure have suffered any harmful consequences.
If you follow these basic protective steps you will have mite-free animals which is much appreciated by anyone who will buy from you in the future or who handles your animals, etc, and you won't have to worry about infecting other people's collections. BTW, one can of Provent a Mite was enough to treat my entire collection of about thirty ten gallon tanks, twice. Good luck and hope you have many happy, mite-free years of herp enjoyment 
TC
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Ratsnake Haven: Elaphe schrencki, dione, bimaculata, mandarina, conspicillata, porphyracea, taeniura, situla, and emoryi. 