Hi there,
I have seen a ton of posts in diffrent forums for this info. Nix is good, but not the best. If that is all you have then use it, but if you can get pemetherin 10% youll be headache free after one treatment. You can get it from feed stores.
Nix, in a safe dose to balls, is 14 parts H20 to 1 part Nix. This is a SAFE dose, it can still be more concentrated, but watch out. You must remove all water in the cage for 24 hours, or until the nix spray is relatively dry. the snake should not be able to drink what you spray in the cage, so dont let the Nix pool. Soak the bedding and snake. This kills mites and other insects on contact. The residual will kill for 24 hours.
If you can locate permetherin 10%, use 3/4 ounce to one gallon of H20, with 4 to 5 drops of liquid dish soap(ie: Ajax, palmalive, etc). Use same application as Nix, but this does the trick with just one treatment. You can also spray this around the hoouse and snake room. It can discolor carpet and fabric, so be careful. If you have any more ?'s you can contact me. Hope this helps.