I was thinking the same thing. Keep on top of the situation. Use the Nix you have in the proper concentration, and use that spray the cage and accessories. Just to be sure. You do not want to have to deal with another 'outbreak' all over again. The nits can be the hardest to eradicate, and coating a snake in oil will not kill what's hiding in and around the tank. It only takes one mite to start an infestation.