Hi all, I have 6 chicks that are 5 days old. All healthy and active on arrival. 3 of them came down with pasty butt last night. They have been cleaned and seem fine now. Is this caused by something in their diet or just the way it goes? Should I expect it to continue or maybe a one time thing? They are eating Manna Pro medicated chick starter and I have been giving them save-a-chick electrolyte and probiotic in their water. Is there anything anyone out there would suggest I change, do, or not do? Thanks!!