Today I went to my coop and noticed a soft shell egg. Now this was starting to become a everyday thing now so I got some eggshells that I’ve been collecting and dried and crushed them up to about the size of an oat. I gave it to them and quickly realized my mistake, but by time I got back they had already finished it. I gave them some grit and they aren’t eating it. Now I’m scared that the egg shell was to sharp and it would cut their crops or throat. What should I do?