maybe mites?

[Freebody]

i just went upstairs and cleaned out all my snake just now, but in my adult jags cage i seen what looked like 20 dead mites in him water tub, i took him out inspected him, pet him for a good 15 min and didnt feel any mite or see anything on my hands, checked his cage whiped it all down like i did all the others didnt see anything ?? should i rub some oil on him or get some mite treatment or just keep checking him a couple time a day to make sure i dont see anything? i didnt see anything in any cage or even his cage for that matter, just what looked like mite in his water tub, could have even been fleas they were rather large for mites, actually to be honest they were rather small flea size vrs a tiny mite, but no fleas in my house either, all hard wood and never seen a flea here before and nothing on my dogs or the ferret. anyone had somthing strange like this happen?