Hi, @Katrina. I don't want to hijack your thread with a diatribe about palytoxins, but, well, I guess I am. I'll try to keep it brief.
As most of the people on the forum know, I had a rather scary exposure which has left me with slight vision loss in my left eye. I am a sort-of experienced reefer and should probably be so embarrassed about the situation that I keep the experience to myself, but I think it is too important to share so that others take it seriously. I can give you details if you would like, but the upshot is that I knew the palys were dangerous so when I saw that they had spread, I had the brilliant idea of removing them. Since they can kill surrounding coral when you remove them, I had the additional brilliant idea of removing the rock and pulling them off the rock with tongs. I wore goggles and gloves to be "safe." Somewhere in this process, I must have touched my eye with my glove or with my hand after touching my glove or who knows. There was no pain or problem...until the next morning. I won't bore you with the details (though I'm happy to share them if you want), but suffice it to say that it was literally the worst pain I have ever experienced and I spent the ensuing months treating with a specialist at OHSU so that I wouldn't lose my eye. I'm happy to report that I have almost all my vision back now. Almost.
Anyway, I would obviously recommend that you get them out of there, but it is tricky because there are risks doing it in the water and risks doing it out of the water. I don't want to give you advice, but if it were me I would carefully, and in full safety garb, take the whole rock out, put it in a plastic garbage bag, seal it, and dispose of it. I would not try to save the rock. I know rock is expensive, but so is a specialist at OHSU.
One more thing--remember that palytoxins are not just a danger to your vision. They can be fatal if somehow inhaled or they get into your body some other way. Best to read the article Reefnjunkie posted as well as other case reports.
Good luck, and let me know if you have any questions.