Yet another ID needed

[LCDRDATA]

This guy showed up where he is about four months after I added the rock to my system. There's nothing else like it anywhere I can see in my tank. It's in the center of the pictures, between the "purple nurple" encrusting monti on the left and a purple mushroom on the right. Any ideas? Thanks!

 

[APBonds]

I think thats a pest anemonie. I've seen those in my tank and they will move to the shady side of the rock but I haven't seen them harm anything.

 

[LCDRDATA]

Action required?

Action required?

So if it's a "pest" do I need to do anything? And if so, what - Aiptasia-X, etc? Or, if it doesn't hurt anything (and doesn't spread), can I just leave it alone? How big will it get? Any second opinions? Thanks!

 

[APBonds]

Aiptasia-X or zaptasia those kind of things will kill just about any poylop, so I would say it will work. When I first saw it in my tank I thought it was a BTA but it never got any bigger. I didn't kill the one in my tank and I don't even know where it is now. You might want to go ahead and nuke it before it gets by your clam or something else thats fragile.