Question, I have used PAM and it was effective and I always used it as a prevent future mites. However, its not being sold on Amazon anymore and Reptile spray is something that everyone talks about. How effective is it? Like after cleaning a tub does it still work/is it still effective? Does it kill and prevent mites from coming back in? Need a handy spray and just want to know if its effective. Plus reptile spray is like half the price.