Yeah, Lily was using a bottle when I first got her back in August, and I kept her on a bottle for several months. However, after I found this forum and found that they could chip teeth and get their tongue caught (even if that is rare) in the bottle, I started adding a bowl of water to her cage. After a week or so, I took the bottle out, and she seems to be doing fine with her bowl. She's a pretty neat girl, and she's on liners, so I don't find any shavings or other stuff in the water. I fill the bowl all the way to the top so that she doesn't have to put her feet up on the edge and lean in to get a drink, so no poop from her feet falls in, either. I rather like using the bowl, it's easier to clean and refill each night.