Coral reefer
Past President
That test idea is smart!I didn’t end up using it in my tank, I just dipped affected corals in FWE. But the tips I read online were to use it following package instructions, then be prepared to do a large water change and run carbon to handle the dying worms producing toxins. If you want any to skew the dosage You can figure out the dosage required for the specific FW you have by putting an impacted coral in a 1 gal container of S.W., then drop the FWE in until you see them die and then you have the concentration required for your specific FW
The whole package is pretty much perfect for my system, so I’m just gonna use it and see if it works. If not I’ll do the test before I try again another time