i wanted to know if pine bedding is safe for gerbils?i got my 2 gerbils when they were 3 weeks old.i got them from a friend.my friend always used pine bedding for them.my 2 gerbils are now 5 weeks old.they dont look sick to me .they seem healthy.i just want to know if i should switch bedding to something else?if so which bedding should i use?thank you

