Cupramine and tang discoloration?

[Nickmag01]

Recently moved all my fish to a hospital tank after an ich outbreak. Fish were moved Jun 22. I have noticed my kole tang has some discoloration on him, it looks like HLLE but I cannot confirm. I am feeding mainly nori. My cupramine is around .5ppm. Should I reduce dose to .3ppm or leave it alone?

 

[Big G]

Copper will suppress the fish's immune system. Helpful if you can add some vitamins and a "wide" variety of food suitable to your fish's diet requirements. Selcon, Zeocon, Beta Glucan are all good to help boost your fish's immune system.