Like I said, I know for sure that the case with my tongue is candida directly on the tongue, because it is not just a white film or anything like that, but actually furry white stuff that is rooted into the taste buds. It won't come off even with a tongue scraper, it just looks as though I am just trying to groom it! Oregano oil burns it right off though.
Back when I was healthy I used to get the regular white film on my tongue once in a while, but that was totally different, because it wasn't furry like what I have now.