Reptile spray works wonders as long as it’s making contact directly with the mite . Sounds like you have it under control. Not long ago I picked up a snake at Hamburg PA show which is notorious for mites . Luckily I quarantined .
I treat every new addition as though it has mites and all the tubs get sprayed every cleaning . Better safe than sorry .
And in my opinion if you keep snakes long enough sooner or later your likely to have an encounter with mites .
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