[Manually remove whatever you don't like, or if you are like me you'll have a tank full of reeflings dying to clean up the latest arrival.
I can assure you that all the corals that were in the workshop today have been completely scoured by my livestock for the past couple of weeks. My Naso has a love/hate relationship with valonia. He makes sure none of it is in my tank, perhaps because he loves to eat it or perhaps he doesn't want to see it. I've watched that fish flip and chase a patch of zoanthids as he surgically removed one bubble at a time with amazing precision.
While bagging the corals today, Mr Spock was very involved. He might have even entered the bag had he been given the chance! :wwww:]