They are about 8 months now and none of them seem lighter. They are weezing and sneezing. They have had these problems just today 1-9-12. I have 7 and this is going on with all of them. They have been eating and drinking just fine. The poo is normal. I havn't done anything to help treat them yet because I don't know what it is. I have some cedar in the bedding I have had it in there for a few weeks now and I havn't noticed anything going on at all untill now I am putting some aspen in there tomorrow so there wont be near as much cedar just to make sure! Sorry if it seems all choppy i had to get this done fast.