I only use mine once every 6 months or so (and I use it for 2 months when I do) to reduce stress on my snakes (as their tubs are out of commission over night while I let it completely dry). But, yes, every time you get a new snake, every time you think you see a mite, regularly as prevention, when you handle a wild herp, or whenever you feel like it, it's good to know that you have that to protect your snakes. I consider it an essential for anyone who owns a snake. Heck I've used it to treat rat tubs prior to getting them.