I know there is a lot of debate on what kind of bedding people keep their rats and mice on. I have a weanling rat that I am keeping until the next feeding day for one of my snakes. I have it on a mixture of pine and fir that I bought at the store. It seems to be doing okay on it. I have read many threads on here about the possible dangers of keeping rats and mice on pine bedding. I am just curious as to what those of you that breed your own feeders prefer to use.