I have bad luck all the way through with my 625g FOWLR....After several treatments including Prazi, copper and hypo in the DL, and others in the QT, I now see fish flashing, spurts of swimming, cowering in corners and glass surfing...I do see a powdery sheen on some of them which basically means velvet that has outlasted all of these treatments including 1.75 copper for 30 days. What do I do now....I’m afraid I will lose everything....