Well, I would LOVE if that were the case...only problem is...they are only 2.5 weeks old and already I am keeping their temps between 76 and 80...they seem to like it cooler than the typical textbook 5degrees a week... but I feel like if I make it too much cooler already it'll be too cold for them. 
They are in a brooder in my house/basement where we live and its normally about 68 in the room.
They have ventillation...they're in a very large clear rubbermade container, but the entire lid is cut out with mesh screen...plenty of airflow (and incidentally as their playing increases plenty of dust I'm finding out 

 )
No vet in my area that takes care of poultry (which is dum bc I live in a basically farming community)
I too don't think it's cocci because she's still eating and drinking and playing...just less playing than the rest. As far as worms, I couldn't see any worms in her poo, but then again I'm not 100% sure what I'm looking for. I'm also wondering, I got them at 10 days old, but they were inside in a brooder, and I've never had them outside...how would they get worms or cocci?
We also stopped changing the bedding daily on saturday and have just been adding a little bit since then...now today we're due for a full change because it's getting too deep and too smelly but we're going to continue to do the layering-it works out better for us.
I have not yet added the ACV but I finally found the dosing, and plan to so that tonight after we change and clean everything they will have that. Should I also try the yogurt again or would that be too much?
Thank you so much for all of your help...it's been really difficult to get anyone to answer my posts yet, I can see other people post similar (or very much less significant) topics and get 20 responses by the time I get one about my poor little girl...it's discouraging! Thanks again!