Yellow Corris Wrasse recently out of QT showing issues. I recently released a YCW and a pair of Bangaii Cardinals. Upon receiving the three fish I did one immediate treatment with Prazipro, then scaled up copper concentration of Copper Power over a week to a concentration of 1.6-1.9 (Varied over time). I was at therapeutic levels for 31 days. Upon completion of the Copper treatment I removed the copper via cuprisorb and water changes. After 48 hours I completed 2 more treatments of Prazipro 4 days appart. I introduced the fish into the aquarium yesterday, previous residence were a blue chromis, two mai thai clowns, two blennies (Starry and Tailspot). A smattering of clean up crew containing shrimp, emerald crab, and a handful of different snails. When I received the YCW it was flashing on the white PVC in QT however once copper got up to concentration it did not display this behavior… I had noticed a faded white spot on the side of the YCW that did not go away during QT however I just chalked it up to a blemish. 24 hours later now in my DT, the YCW is flashing again in the same manner (and on the same spot the blemish had remained) The wrasse now has created a sore on this spot and I’m worried its possibly some kind of infection. Suggestions? I believe it will be near impossible to capture this guy out the DT now.