I did not see anything came off after the dip. A little background about my QT, I have 3 fish in this QT for 3 weeks and I've already done 2 rounds a GC. Sometimes I noticed one wrasse still yawned/flashed occasionally so my guess was either prazi-resistant flukes/ich in the gill. Then last week I added 2 more fish, both of them started to flashing continuously shortly after arrivals. 3 days ago, I gave them (the two new fish) a FW dip/Acriflavine bath and started another round of GC to make sure the new fish were treated for flukes but the flashing never stopped. Today I gave them (again, the new fish) another FW dip/Acriflavine bath then started ramping up CopperPower.