I had to treat my QT room for mites last month. I took them all out and coated them in olive oil to drowned the mites and the sprayed down all of my tubs with PAM after bleaching them all. I just sprayed my tubs down again last night and I didn't see any mites on my babies, but is it safe to relax yet. It's been about 4 weeks since the last time I treated the tubs.
My two snakes that got hit the hardest were my hog island boas since they were in the tub next to the one the infested snake was in and since they are so speckled it's hard to be sure they don't have any on them.