Ball anenome?

[adam.1]

Chat is saying this is a ball anemone or a cup coral. I have my doubts on both based on photos I see online. Can anyone identify it? It quickly retracts completely when something gets close.

 

[Saltyreef]

Looks like a feather duster worm

 

[Tahoe61]

Could be a feather duster type. Details are hard to makes out so I am not ruling out Aipitasia.

 

[tbrown]

It doesn't look like a Ball Anemone.

Im thinking the "tentacles" look more Aiptasia or Lightbulb Anemone (leaning more Lightbulb?). Any possibility of shining a flashlight and showing us where it hides its foot?

 

[adam.1]

Looks like a feather duster worm

It doesn’t move. Stays there I’d think a worm would move? After research apparently that worm does not move.

 

[tbrown]

It doesn’t move. Stays there I’d think a worm would move?

Feather duster worms don't usually move. They build a tube and live there.