Mites are an absolute pain, not something that I would consider a major issue, obviously if not treated it can be, but it is something that is quite easy to remedy.
The simplest and least problematic (in terms of risk to animal) is to have a few standard 44ltr tubs, and a few heat mats.
Move all animals from the room that the snake with mites was in, place them into the tubs. Think of it like a little holiday for them away from everyone.
The tubs will need to be as far as possible from the tanks, and obviously somewhere out of the way.
Don’t remove anything from the enclosures, just get some TOD, and give each a good spray (fog), shut the doors, and leave them. Repeat this on weekly basis for a month.
The animals that you have moved to the other part of the house will essentially stay in those tubs for at least the month. The one that was infected with the mites, it is best to get a bucket and make it have a soak for as long as possible, i.e. half hour to an hour until it starts getting annoyed.
The reasoning behind this process is to simply break the mite cycle. Any mites that are on the animals will have to get off the animal to lay eggs and then die. So by soaking you will remove a good amount of the mites, and any remaining will get off in there own time. By having the animals in a bare plastic tub with a piece of paper in it, you will see as the other mites are coming off. You will want to give each tub a solid wipe out every 2-3 days for the period that the animals are in there, and spray TOD in the room that you are keeping the animals in.
Mites will look for cracks and other “safe” places to lay there eggs, so considering that you are wiping out the tub every few days, and considering it is plastic, you wont have problems with mites laying eggs in the plastic tubs leaving the only other place being in the room where the tubs are situated. So the TOD in the room will take care of that,
Mites can travel a few meters per night so it is likely that if you have a bit of an outbreak in one enclosure that the other enclosures will also have mites or the mite cycle about to start.
Again, don’t stress about it, it is really just a bit of a hassle, due to all the moving around. There are other methods that you can use, like leaving the animal in the enclosure etc, but personally for the sake of moving the animals totally away from the enclosure, and having a couple of tubs with mats under them for a month in a room, then I would prefer to do this than subject the animals to fogging.
Its totally up to you and all the best with it.
Cheers
Dustin