There's a lot of different kinds of mites. And yes, bird treatment isn't for snakes. I hope you noticed in time to save them! Foolish pet store employees! What's wrong with those people?? If they don't know, they hsould just say that, instead of selling you a bird product not made for reptiles!

Make sure you rem to wash out the water bowls too, in case some residue is in the water, if you didn't already. Good luck.