I got mites in with the addition of a new snake and right now Im battling mites on 20 snakes. I have used reptile relief on the snakes along with prevent a mite on the enclosures. I have the snakes in a 41 qt tub or a 32 qt tub. I have sprayed the whole enclosure down of ever snake and it seems as if the mites are climbing up out of the tubs and then climbing back in. I believe this because I see the mites on my rack under the cover of my tubs. I keep soaking the snakes every two or three days. What is my next step?