rossij,
While the picture is not quite good enough for an accurate ID, from what I can see and your description, it sounds like you have a couple of different disease issues occuring at the same time. Ich can still be a part of the problem, IME "reef safe remedies" like No Ick are usless snake oil, and mela/pima fix only slightly better. I would strongly suggest placing the fish in a seperate quarantine tank and treating with a combination of hyposalinity (lowering SG down to 1.009-1.010 over two days) and one of the following antibiotics, Nitrofuran or other furan blend, SW Maracyn 2 or Kanacyn. The hyposalinity will take care of any ich, and the antibiotics are good broad spectrum ones that will take care of the majority of bacterial diseases you are likely to come across in the aquarium.