Update. I decided to leave totally alone. It healed itself and geos is out and about with the others again eating. Still skinny and not out of the water yet. Thank you to all who replied.
awesome I would still consider deworming him
How would I know it has worms?
I understand but why are u suggesting I deworm it? There's nothing pointing to worms? Like if u broke your leg and I told you to go get a flu shot lolonly way to know for sure is by a veterinarian doing a fecal. Otherwise based on suspicions and where the fish are from and if they have ever been in contact with wild fish etc.