hi umm I know this has probably been asked at least 100 times already but ... I have 12 baby chicks and use ceder shavings I know its bad for them but its all I have and I won't be able to go to the store for a long while. what should I do? they all look quite healthy to me though. they are running and eating and doing their lil chick thing. if there is ANY advise you can give me it'll help. i want whats best for my chickys.