Hi all. Im using cupramine in qt atm and just hit .5ppm today. I do have some blue star wrasse in and are still eating fine and active. I jist worry if the level was to drop if i misscalculate wc etc. What is the lowest level to be still in therapeutic range that it could dip down to without having to restart my copper clock. Anything @Jay Hemdal? Fish are alot better than my last qt attempt with coper power