Dave, is that the antibiotic for anemones?
Maybe I will ask reefwise if they have it.
Treat them now (contact orionn).They are at least semi bleached and one has a loose look to the body structure.
Sorry to be the bearer of bad news but I'm sure you guessed something was going awry.
XT
Don't "should i need to medicate it" do it. Prophylactic QT has proven effective.
C'mon guys this forum is littered with threads on this very topic.