Yes you can use flea powder..........you have to use a specific one though. Up in Canada it comes in a white container.......I forget the name of the product but the active ingredient is NOT peritherines. You cover everything in the cage as well as the snake with the powder and leave everything covered for about a month or so. That will kill all the mites instantly. The reason you need to do it for atleast a month to 2 months is that you want to kill all the mites that hatch out of the eggs that are inside the cage. Mites feed on the snake and then lay their eggs on the surfaces surrounding the snake. With the flea powder on the snake the new mites hatch out and are killed instandly when they touch the flea powder to feed off the snake.