Thanks for the reassurance. We are still very new to this and it's hard to know what is normal vs problematic!Occasional foamy and/or juicy cecal is not cause for alarm, IMO.
If constant, then that may be another story.
I have the chicken health handbook and although it's helpful for a lot of things I think it's making me overly paranoid. The only thing it said about foamy poop seemed to be associated with nodular tapeworms. But I saw poops like that even when they were still inside in the brooder.