Sandra, I have to ask this. What is it with the Aspen chips? Could they possibly be lethal to guinea pigs and not hamsters? Everyone who had hamsters, including the pet store, told me to get the Aspen chips as it was much healthier than the pine or cedar. Now I'm all confused!! We have used Aspen with much success in our home, although it looks like we might be losing one little hammie girl now. I certainly hope I am wrong about that.

Logan