Hydroid or feather duster?

[Hexabonal]

The tubes in between the zoa heads will stay extended even when the head ducks away if I scare them, but seem to be slightly flexible.

 

[James M]

Can you get a clearer pic

 

[KJ]

Acetabularia sp.
https://www.google.com/search?q=ace...ved=0ahUKEwik_9-g3qLeAhWDT98KHdVTDk8Q_AUIDigB

 

[cristata.reef]

Acetabularia sp.
https://www.google.com/search?q=ace...ved=0ahUKEwik_9-g3qLeAhWDT98KHdVTDk8Q_AUIDigB

Acetabularia has a slightly concave disk and a very thin stalk, so it's not that

 

[Hexabonal]

Can you get a clearer pic

I'm afraid not, it's quite far back in the tank and I only have a phone camera, can anyone work it out from this?

 

[Hexabonal]

Acetabularia sp.
https://www.google.com/search?q=ace...ved=0ahUKEwik_9-g3qLeAhWDT98KHdVTDk8Q_AUIDigB

Yes I'm afraid it doesn't look like this - the tube is a dark grey/black and the duster bit is white

 

[Lovemyreef2015]

Could be a social feather duster worm. (Bispira brunnea)? Hard to tell from the picture.

 

[DSC reef]

Acetabularia has a slightly concave disk and a very thin stalk, so it's not that

Do you have any idea what it is???

 

[James M]

I'm afraid not, it's quite far back in the tank and I only have a phone camera, can anyone work it out from this?

What about a pic from the top

 

[cristata.reef]

If I had to guess, it'd be some sort of feather duster polychaete.

 

[Hexabonal]

T

Could be a social feather duster worm. (Bispira brunnea)? Hard to tell from the picture.

Thanks! If it is then it's a butt ugly version

 

[reef lover]

Feather dusters