So we have 2 little 11 week old Ameracauna babies. They are in a seperate pen now with the 4.5 month old Ameracauna pullet as well. They are seperated at this point only by the pen. the other hens free range during the dayall around them. They have been perfectly fine til the last day or 2. I noticed last night that they had lost some weight. They dont move around quite as much as before either. My daughter cleaned some mucus from ones nose. That one seems a bit 'puffy'. IM thinking cocci? prior to being in this pen (about a week and a half now) they were quarantined in a cage off the ground, so had no ground access. We had cocci before in our older girls, but it was very mild. However, they were a good bit older & bigger than these babies. I put the corid in their water this morning. How long do I give it? anything else I should give them? antibiotic for the nasal discharge?