Ivermectin can cause paralysis and death if administered wrong which is why I didn't mention it. Telling someone to put liquid ivermectin in the water may likely cause them to kill all their rats..

A much easier way if you want to use this method is to simply go to the pet store and buy a bird mite disc. It's a small disc that hangs on a birds cage. If you peel the paper off the front and hang it near, not in, the rats enclosure, it should get rid of any mites.

It is nearly impossible to keep a rat population free of rat mites 100% of the time due to bedding. They will often get them again.

The reason people say their rats don't have mites is because healthy rats with a string immune system will show no symptoms. Even a skin scrape at the vet will often show a false negative. A weakened immune system or allergy is usually the only way you will ever know if your rat has fur mites.

So try the mite disc option and read this page for more information.

http://www.swanimalhospital.net/html...s/ratinfo.html