Any guesses as to this?

[bcub30]

Not really sure what this is other than to say im sure its a palythoa of some kind. Have had maybe a few months. The price was to good to pass up.

pretty fast grower for me!

 

[Tahoe61]

Yes you are correct in your ID. They are attractive and also invasive so keep that in mind.

 

[bcub30]

Yep thats what i figured. They are on a rock in the sand bed. Dont want these babies spreading everywhere.

 

[Oscaror]

Green button polyps.

 

[Chris Adams]

Second Tahoe61 comment on this. Have seen threads in the past about these taking over.

 

[Oscaror]

Personally I consider them to be pretty aiptasias. I think they're pretty nice alone but I'd never let them into my tank, don't want my zoas getting overrun. Good that you have them on their own rock.