Is this Xenia? Is so, how to kill?

[Jers_Reef]

Purchased some nice healthy Fiji leathers a few months ago. They came attached to a rock, and so rather than pry loose and attempt to reattach, I decided to dip and just keep the rock. A few weeks in I noticed a little spindly flower looking thing growing from the bottom corner. I’m pretty sure it’s Xenia, which concerns me from all the stories. What’s worse is I think there’s some of the same starting to come in on the right side too! What’s going to be the easiest way to kill it off without damaging my prized Fiji’s?

Thanks!
J

 

[Joj]

IMO, looks like majano anenome (considered a pest like aptasia)

 

[MauiAnglerReef]

Looks like majano

 

[Mr. Mojo Rising]

Picture in white lights only will help, but I agree it looks like aptaisia or majano

 

[Jers_Reef]

So right now I’m thinking pull the rock, hit the mini nem and new budding monsters with a propane torch, rinse and scrub in a bucket of tank water (water change), then return my Fiji’s. Think I can do it without hurting the Fiji’s?