I have a potters angel currently in QT that i believe was needled. She is eating ok not a lot but still happy to see her picking at NLS pellets. I can see on her one side that she has what looks to be like raise white mark right in the area where they needle fish. Is this just a raised scale? I saw this when i first bought the fish and it went away a day or two later in my tank. I just noticed it is back again last night. I have had this fish about two weeks. Only thing i treaded with so far was prazipro. Should i does some form of antibiotics or will she heal on her own.