All six of my chicks have some pretty good size crops the last few days. They are very noticeable but not to the point the skin looks super stretched or anything. They are all still very active, very interested in food and water, and I think they are all still pooping since it feels like I am constantly cleaning up after them. No one seems to be in pain or acting strange. Most of the poop is what I have been used to seeing from them, but there have been two or three really wet ones, and those ones are a bit stinky. They have been on Naturewise Chick starter/grower, which says it has a good amount of probiotics. I have started putting apple cider vinegar in their water instead of the electrolyte mix, covered all shavings with paper towels... They are 3 weeks old and 2 weeks old. What else do I do? Is there any chance this is normal and I am way over reacting?