My 4 hens are 10 and 1/2 years old. I just recently realized that I shouldn't be feeding them the Layena pellets because of the high calcium. The only thing I could find at our Tractor Supply Store was Dumor crumbles. I've never used crumbles, but the hens seem to like it. But.....it soon turns to very tiny crumbs.......like crushed breadcrumbs. Will they continue to eat that, even though its really fine? Thanks.