I had pulled all my fish from my DT after seeing signs of ich. I lost a sailfin on the first day of copper. My blue tang has been in copper power dosed at 2.5ppm for 2 weeks now and he looked to be ok just some heavy breathing. But a few days ago he started scratching against the rocks again, so I did a fresh water dip thinking maybe flukes and i think some stuff fell off. Today he looks to have white stuff on his head and his tail fin is turning red/orange. Can anyone diagnose and give me the next steps to treat?
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