Black and White Tentacles

[Vt328aa]

Can someone identify these black and white tentacles? I touch them with a little stick and the tentacles wrap around the stick. Hitch hiker, I think, from a small rock with zoas polyps that I bought from an LFS.

Thanks.

PS: Whatever that is, it moved from the original rock into the rock in the picture

 

[Vt328aa]

Nevermind. I found the answer. Mini brittle star.