in the other thread i'm pretty sure they said to use saltwater when dipping not freshwater. i think zoas can survive a FW dip but its harsh on them. Euphyllia should not get a FW dip.
ive dipped zoas and monti cap in Revive but i used clean saltwater at DT temperature. i did not dip my euphyllia.
montipora and zoanthid commonly have predatory nudibranchs that hitchhike on them (and eat them). euphyllia, as far as I know, do not.