Darn, overlooked dawg53/worms & illness ... I've got a list of BYC members with their "expertise" & location so when tagging I can get the right time zone. You should include your location in your profile.
Kind of looks like intestinal lining being shed but Corid won't hurt. You need to mix a new batch every day, are you giving the powder or liquid?
The one with the nasal discharge maybe a respiratory issue ... If you saw a roundworm it maybe best to worm them all.
Hang in there, someone with...