I was thinking about adding a health Zebrasoma sp. to the tank like a medium yellow or purple. I have had success in the past with fish teaching other fish what to do.
But then i started to think about ich, and how id have to qt the Zebrasoma before i put it in this other QT with the achilles, and then still have to worry about stress and ich.
I dont know if the pros outweigh the cons.
Any other input on adding a Professor Fish to the tank.