daisy,clove, or palm polyps all are very resilient and can appear after being gone a long time. Are there serrations or fringes on the "petals" Are they chained together, or individuals?
My tanks 2 year birthday is tomorrow. There may have been some clove polyps (never really knew what they were) on that rock 18 months ago. But I pulled a newbie and killed them all. I even sent so far as to use a brush to remove what was left from the rock. They had spread to two rocks at the time. This may have been the smaller of the two rocks that they had grown on, but the exact rock is lost to time.
This picture makes the polyps look much bigger than they actually are. I have taken the rock out to look at it, but I cannot say if they are connected or single, because their stalks appear to wrap around the rock to find what little light they could. Is the part that wraps around the rock "stalk" or "mat"? Its too hard to tell.
I have several pictures from my original clove polyps from 2 years ago showing new sprouts, but they don't look much like these critters either.
My first thought was the original clove polyps, but for the reasons mentioned above, I didn't think that was a possibility. But if they could have come back after this long and after what I did to the rock, I guess its possible that they are the original clove polyps.
Since multiple sources have confirmed that they are not aptasia, and since they haven't really done anything since I found them, other than survive, I will probably let them stay and see what happens.