Anemone?

[DawnG]

Just installed some more intense lights and I'm trying to get some different macro algae established. I think someone came along for the ride. The critters in the video are only about centimeter wide and I couldn't see the arms until I took photos, but the spots got my attention. Any idea on id?

 

[fishguy242]

hi i think those are ball anemones??

 

[dbowman5]

when i look at the ID stickythread they are similar to the picture of ball anemone