Hi. We got some baby chicks this past Saturday from Rural King. We have a temp regulator on our heat lamp. I change the water every day with electrolytes, keep the brooder clean, we have had 2 chicks pass yesterday with what seems to be a respiratory issue (labored breathing and then shallow), they started displaying characteristics not like the others slowly (not active, not chirping, would let me "pet" them, wouldn't run, etc, one chick one day with symptoms, then the one the next day; however, the 2nd one passed quickly)...Now I have a 3rd chick that is having droopy wings and is being a loner. Should I give antibiotics to the entire flock? Segregate the 3rd chick