I incubated 4 guinea eggs from my guineas that are laying. They hatched out within minutes of each other. They are in a brooder with a heating pad and plenty of room to get away. My brooder is 2 1/2 feet wide and 4 feet long. I noticed 3 days ago 3 of my keats had pasty butt. I cleaned them with warm water. 2 of my Keats has cleared up with no recurrence. 1 keat still has pasty butt, when I cleaned it today I noticed it was a little bit swollen so I put a small amount of vaseline on it, incase pasty butt was why it was a little bit swollen. When I put him back in with the others, they started pecking at his butt. I put him back under the heating pad. I have noticed when the others are out running around, he stays under the heating pad but eventually comes out. They don't seem to peck him then. Should I put him in a separate cage until he heals or what can I do to heal his pasty butt?