Sorry I forgot to attach it, refresh the post should be there nowPictures will help.
He’s been with with me for a few months (at least 3)How long has he had the black spots?
Do the black spots come and go or are they there all the time?
How long have you had the fish for?
Have you added anything new to the tank in the 2 weeks before this started?
Do you dechlorinate any new water before adding it to the tank?