Possible Zoanthid ID

[Chevyguy8893]

I am not completely sure that these are zoanthids, but it is my best guess at the moment. These came in as hitchhikers on my live rock and have been growing for a few months now. They have grown new polyps, but seem to be staying pretty small. I have no idea if these will grow any larger than they are right now. Anyway, I took a few pictures ranging from just after opening up to fully extended. Any thoughts would be appreciated.

Sorry about the picture quality. I did crop the photos since I do not have a macro lens, and I did include one full size picture to give an idea of their size (the substrate grain size is 1.0mm-2.0mm for comparison).


13175835443_f12d5c3885_o by chevyguy8893, on Flickr


13176664053_d2fc285008_o by chevyguy8893, on Flickr


12885312924_bcbf9b1608_o by chevyguy8893, on Flickr


DSC_0989 by chevyguy8893, on Flickr

 

[Polishpower]

No idea what they are but those are pretty cool hopefully they are good for the tanks

 

[muntwo]

looks like alveopora

 

[reefer999]

Not a zoa probably some type of goniopora or alveopora

 

[Chevyguy8893]

Thanks for the help everyone. It does look like some sort of alveopora by the number of tentacles.

 

[FL_Reefer]

Not a zoa probably some type of goniopora or alveopora

+1.

 

[LIVINGART]

+1 tiny Alveopora