Zoa(ish) id?

[TilleysReef]

It's small, about the size of an eraser head, but really unique. They appeared on some new live rock I have. Not anything I've seen. I'd say it was a zoa, but it has those tentacles around the outside. I'm stumped.

 

[ISpeakForTheSeas]

Ball Anemone (actually a Corallimorph, not an anemone) - they're related to mushroom corals. Should be harmless.

 

[TilleysReef]

Thank you. They are cool looking

 

[vetteguy53081]

It's small, about the size of an eraser head, but really unique. They appeared on some new live rock I have. Not anything I've seen. I'd say it was a zoa, but it has those tentacles around the outside. I'm stumped.

Unlike aptasia and Majano, I had one 2 years ago and it remained, had nice color and only one more ever emerged. They remain small and here is a puzzling fact as others stated they are a good anemone. Anemone ???
Ball Anemones are actually not anemones at all, it is actually a mushroom coral (not a relative) that is commonly confused by too many as a Majano Aiptasia. Unlike an Aiptasia, they are reef safe, they commonly stay closed during the day and open up at night. The tips if its anemone-like tentacles end with a ball tip giving it its' name