I recently got 13 chicks, about 12 weeks old!!! They were put in with some older pullets at night. Transition was fine, they all get along. Anyways the younger ones are eating the grower pellets and about half have swollen crops. I dont know what to do. I have read about the baking soda flush, but for 8(maybe more, some wont let me see) chicks?!? Any other cures for swollen crops?