I quarantine for a minimum of 60 days. I just purchased my 5th snake from a great local breeder, the same guy i bought my first snake from. So imo opinion 60 days is fine for that situation. But ive also gotten 2 snakes from a less known local breeder, that I waited 4 months before bringing them into my snake room. Once I was sure they were mite free and thriving with no visible problems. I care too much about my snakes to risk causing them harm.