Uh oh, I read this. I guess i should have waited for your reply.
1) Mechanical Removal – The anemone is assaulted with brute force. Unlike Aiptasia which can regrow from small bits and thus precludes this approach, Majano do not have this capability, so mechanical removal can be tried. The anemone can sometimes be grabbed with forceps or tweezers and pulled off the rock. If the rock is removed from the water, ice or other irritant can be applied to help get it to release it’s foot hold on the rock.
https://reefcorner.com/reef-database-index/hitchhiker-index/majano-anemone/