got cuckoo marans (3) 2.5 weeks ago, and they have been in isolation since. in an ark with upstairs roost/scratch area, downstairs on grass which gets moved every few days so they have lots of grass/grit. they have 24 sf grass for the three birds. they are ~4 mos old and appear healthy. feeding layena pellets, ACV and chicken vitamins in water. feeding yogurt with pellets every other day. eyes are clear and bright, combs are not as bright as i would like but they aren't laying yet and change throughout the day from grayish to reddish, so i guess that's ok. no discharge from nose or eyes. one pullet coughs/sneezes OFTEN, esp after drinking water. wheezes occasionally, not often. her sneeze or cough has a bit of a wet sound to it. not lethargic. i gave vetRx one night and read the next day on here how it could add to irritation and have not used again--up in the air about this. my issue is i don't want to treat unless it's needed (i try to be VERY careful about overuse of abx for my family and animals). at the same time, i need to think about my strategy for treatment soon. i have ~20 chicks that need to go out soon as they are causing some major family stress being in my teenager's room. they are 3.5 wks. so at the end of the 30 day quarantine for the pullets, chicks will be ready to take over the ark. i want to treat in a timely manner (IF NEEDED) so that the pullets are healthy by the time they leave the ark, and so that any sickness they have won't infect chicks coming in. so i am considering treating now rather than at end of 30 days quarantine. i have searched and searched and have not seen a definitive answer. what would you do, given my situation and constraints? i know what would be OPTIMAL--having another coop/pen for the chicks so i could extend quarantine on pullets, so that this would not be an issue. it's definitely the next project i will work on. but for now, how can i make the best of a less than ideal situation? and yes, i am willing to cull if i don't have a better option for the sneezing pullet maran. i can't take a chance on infecting my flock.