Please help ID white spot on a JD. PICs

bennylax3

Who wants to go to Fire Lake?
Jan 3, 2004
123
0
0
43
Michigan
My Jack Dempsey has a white hole or indentation on his side. Could somebody help identify and offer some treatment solutions?

He currently has been moved to a smaller quarantine tank where I have raised the temperature and added some aquarium salt.

jd1.jpg jd2.jpg jd3.jpg
 
I have had the same problem on some of my fish. Then it disappeared after some good water change for about 2 weeks.
 
AquariaCentral.com