Reefpete
Aquarium Advice FINatic
introduced two clown to tank..and my damsel has been chasing one all day long for a week straight now....the clown has now a little thing behind his gill looks like a lump or something picture attached and now my damsel has white spots all over him...the other clown is okay as well as my gobby....what is it and what to do...im going to move both to hospital tank....they eat and swim fine and no issues like that...my lfs said for me to try and remove it off clown with my nails lol