Looks like Ich or velvet. Is this a new fish? How long has it had the spots? Is the fish flashing, breathing heavy, hiding from lights, or swimming into flow?
Is breathing a little heavy.. everything else is fine. No he has been in this system for months, and I don't know where this came from I haven't added anything in a WHILE. bad spots for about a week
With those rather large spots on its face I'm leaning more toward Brook. Does the skin look like it is "peeling" or "sloughing off"? Didn't you have a sick clown?
The clowns are/were carriers earlier when you first got them. Brook can infect any fish. The fish need to be put into a QT and the tank needs to go fallow for 6 weeks to starve out the parasite.
I'm going to leave it here because it started out as a meet and greet thread.
If OP wants, they can start a new thread in that forum but I think you've got him pretty well covered. Great advise.