4 weeks ago I bought some chicks from a seed & feed store I bought 4 baby Bantams chicks they all look healthy except one little one he won't grow I also noticed he's gasping for air and one eye is closed I clean it and clear mucus comes out. I have been putting eye ointment it opens a couple hours later closes back up. He eats sleeps and drinks like the rest.. is he going to stay that way??? He still looks like a 3 day chick....