Oh! Okay. I thought it might have something to do with that, but I wasn't familiar with the term. It is white from what I have seen. I just cleaned the cage today and didn't notice anything out of the normal. I will pay extra close attention over these next few days and see what it is looking like. Thanks for the tip! The only method I knew of to tell if a cham was dehydrated was the sunken in eyes. And that actually explains a lot. Her eyes are usually sunken in when she sleeps.