Is there a central ac vent in the spare room the tent is in?
Like you I got desperate and used every nasty chem I could get my hands on, the nastier the better,,, or so I though. I witnessed mites crawling on the no pest strip itself, so in the end it was a very unnecessary risk for me and my pet.
I know your going to hit them with all that crap, i dont blame you, but Im still going to say what I found worked out for me in the end.
Changing the environment. Temps, rh, and spraying with cold water for a week or so. This will make them very uncomfortable and contemplate moving (no they dont actually think,,, that I know of
) When you notice their activity has slowed way down, its time to bring your rooms environment closer to ideal conditions to help prevent mold/pm/bud rot and to keep your new friends happy,, but still in favor of making the pests uncomfortable, yes this effects the plants but you gotta do what you gotta do.
There are several types of spider mites so it will help knowing what kind you have.
Now is the time to introduce mite predators, a good bit of them. They will gorge until there are no more mites left to eat, and then they die off.
Now you gotta keep your room clean CLEAN and be preventative and be very cautious about bringing new plants in.
I went with the mesoseiulus longipes, they have a good appetite for mites.
[h=1][/h]If you have already applied miticides dont introduce any predators because you will just kill them and the modern supermite will have zero competition.