I’ve had my purple tang in QT for about 4 weeks now. About a week ago during Copper this white speck shows up where his fin meets his head. It’s literally been the only white speck for the last 7-10 days. I’ve ran Prazi, Antibiotics, Copper, Ruby Reef Rally bath, and a FW Dip. It appears that it’s raised and NOT some sort of cut that has taken his purple color away. I really thought by now and all the treatments he’s had it would have fallen off or went away. Any ideas?