I read the quote from the general post and am pasting a copy of it at the bottom of this for those who haven't read it.
I've heard that the white stuff means:
1. They are getting enough water
2. They are getting too much protein
3. They aren't getting enough water
I have owned Turbo...
I just joined this site. My Russian Tortoise is a female named Turbo. I've attached a pic and she is also on you tube http://www.youtube.com/watch?v=eO7vM0kAKos