I've used the sonicscrubber and it seemed to do more harm than good. It mostly just tore up the anthelia and spread it around the tank just to grow back in multiple spots. If i had to do it again i would just remove the affected rock and replace it.

remove as much as you can manually, then smear kalk or joes juice over whats left to kill any remaining tissue.

My tomatoe clown actually destroys any xenia I try to have in my tank. She just rips it apart... I wish she did the same to anthelia.

Good luck, I have the same problem.

Rabbitfish might eat it?? Interesting. I'll try that out, I have a tank with a pair of rabbitfish. Although that tank has xenia that they don't touch, so I'm a little skeptical that they might go for anthellia.

I'd love to try me an angel to eat them, but my main worry is what will the angel eat afterwards... Are clams safe? LPS? Acros? etc. .. My experience is that usually if something eats something you do want it to eat, rarely is it contained to that "one thing" and the other things may be things you DO want to keep. For example, my CBB eats aiptasia like there's no tomorrow. That's good! :) But he also picks at blastomussa's and candycanes. That's .. ah, not good. :(

angels eat clams and zoas aswell so not good if you have either of those.... I go for manual removal on anthelia as for the xenia sell it or trade.