As the instructions say to do a 20-25% water change after the first round. Once the second round is done, do you do another 25% water change? Also Won't the water have "leftover" PraZipro in it? If I finished the second round should I dump all the water out, clean, and then cycle the QT again or is it safe to add more fish with out cleaning out QT? @Humblefish @SeahorseKeeper

