Sherita,

You mentioned that angels are sensitive to copper treatment. My next round of QTing will be an angel of some sort. I'm thinking about a Watanabe or a Shallowtail. Would it not be a good idea to copper treat these guys? I was going to take a little different approach and was going to start seeding some ceramic blocks today and was going to give them a month to soak. Hoping this would cut down on the frequency of water changes. Does anyone have any experience with ParaGuard?