I received a PM but I don't have enough posts
to reply so I will do it here.
I keep LPS mostly and about two weeks ago I added a Montipora. The Monti has done well with the treatment with no noticeable effects. Favites, Favia, and Echinophyllia will contract within minutes of dosing and then not extend their feeding tentacles fully for a night or two. So for the corals I have I would say after 11 doses there has been no lasting effect that I can see.