Possible Hitchhiker in Zoa Colony

[Callok]

Does anyone know what this is. When fully open it has some tentacles on the outer edges. The polyps around it are no longer opening. I tried flooding it with Aptasia X, but did not seem to affect it.

How do I get rid of it?

 

[Wieloch89]

yku should try to manually remove it from the rock.

 

[saltyfilmfolks]

I think that's a coral.

 

[najer]

Possibly a rock nem?

 

[ndrwater]

Definitely a Coral. Possibly a Meat or Lobo.
Luck you!!

 

[Wieloch89]

It's a coral, but it puts out its sweeps at night and is killing the zoas...

 

[Best Fish-Jake]

Looks like a deflated scoly or cynaria..

 

[Callok]

I have had the rock for about 4 months. During that time it has grown, and seems to be affecting the Zoas as the polyps around it no longer open. I am hesitant to scrape it off since I don't want it to spread (like scraping off aptasias). The lighting doesn't show it, but its a jade green color. Does anyone know for sure if its ok to just scrape it off?

 

[saltyfilmfolks]

No it won't spread like aptasia. You can just stab it or wait till it's mouth is open and app x it again.
Me I'd scrape the zoas and frag them.