So I’m just going to throw this out there for you, but the Hanna Copper checker is a High Range test and will be virtually worthless at determining when you are at very low levels of copper for inverts and corals to return to the tank. It will become inaccurate at “reef safe” levels of copper. Just a heads up for when you treatment is finished and you’re scrubbing the copper out of the system you will need to use a much more accurate test kit for low levels, or rely on ICP tests to tell you when you’re there.

Otherwise I’m interested to see where this leads as I am skeptical by nature and likely fit into camp 3 until I see evidence otherwise.

. Good luck. I’m glad your fish are looking better.