My cuckoo maran is 17 weeks... i recently bought 2 new 10 week pulltes. I tried quarantine and then let them all in the coop last night (im worried it was too early)... my older pullet is now acting sick... closing her eyes and barely eating. Please if anyone can help I would appreciate it. I don't want her to die. I just put apple cider vinegar in her water... has this happened to anyone else? Advice?