I wonder if anyone has any ideas for me, I have a little serama roo that I hatched out about 1 1/2 years ago his 2 sister and a couple of his brothers all died within the first year of a respiratory problem when their combs turn dark purple and they couldn't breath properly, all I have left is him and his brother is in another pen with a female serama (not my breeding). Anyway last fall my banty flock got a respiratory problem (I think from the coop, old trailer and I found mold in the ceiling) the other chickens all seemed to shake the breathing problem with no other ill effects, but him it has lingered on and just lately it has become really quite bad, I gave him some tylan (that was left over from treating my turkey) and I put it in his water for 7 days. He really doesnt seem to be any better at all. This is why I wont let my pair hatch anymore chicks this seems like a problem in some seramas and it is heartbreaking, he is such a sweet little guy I dont know what to try for him. Any ideas?