Hitchhiker ID

[Nevin]

Hi,

I hope someone can help me ID the hitchhiker growing from the base of the digitata in the pics below. Initially I thought it was some kind of zoa. Since it grew bigger it looks more anenome-like, especially the way it eats. The "tentacles" are shorter and thicker than the aiptasia I had previously and the central "disk" is wider. Could be related though?

I don't know whether it killed the digitata or not--there appears to be some damaged tissue around it, so probably it was a contributor. Change in light, flow, water parameters from the transfer to my tank probably helped too.

Pics are very blurry, but I couldn't get anything better out of my camera. 1st pic:



2nd pic:



This one is after eating:



Thanks!

Regards,
Nevin