GuineaPig24
Junior Guinea Pig
I was cleaning out my guinea pig's food stuff, then I decided to give him more fresh water. His water bottle is the grossest thing I've ever seen. There's a brownish stuff that doesn't seem bad at first, but when I stuck a paper towel in his bottle, that was nasty! Horrible green grossness. I decided to put this in health, because I naturally clean out his food stuff. How am I supposed to clean his bottle?
HELP!
HELP!