[Deinonych]

So, it is normal for fish to continue to exhibit symptoms during copper treatment? I've been treating my fish with Cupramine @ 0.40mg/l for just over a week. There are no visible spots, but I've noticed my firefish and one of my clowns continue to flash occasionally. I assumed (perhaps incorrectly) that by now all of the trophonts would have fallen off the fish. Any thoughts about when I should expect to see no more clinical signs of disease? This is more out of curiosity than anything else; my plan is to treat my fish for 6 weeks total at the current dosage.