What are these?

[AC0DX]

Anyone know what these are?

Or these? Look like striped antennas

 

[ThunderGoose]

The "striped antenna " are micro brittle star legs. Good hitchhikers, part of a CUC

 

[DSC reef]

Agreed, micro brittle starfish legs. Trying to catch food. There keepers

 

[AC0DX]

Well this rock has been a score so far.

1 Large bristle worm
1 Peppermint Shrimp
And now brittle star

 

[AC0DX]

What is pink thing growing up the rock?

 

[TherealDusky]

Green star polyps i think

 

[CastAway]

...or anthelia!

 

[AC0DX]

...or anthelia!

So what is that? Do I need to worry about it?