One of mym ates took her 6 month old TINY coastal to the vets because she had mites. DIdn't tell me before she went to the vets and I'm sure it wasn't a reptile vet as they told her to use Frontline on the snake? If it didn't kill the thing, I don't think it would actually travel well down scales as it's designed for skin? Is this lethal on a snake that small? She'd already applied it when she told me and I haven't heard from her.