What are these worm/tenticle things

[Mlarson]

Just noticed these on the side of one of the rocks

 

[HB AL]

Really hard to see with the blue lights atleast for me. Can you take pics with all white lights or atleast light it up with a flashlight and take the pics. This will make it much simpler to get a proper id on what it is.

 

[Mlarson]

Really hard to see with the blue lights atleast for me. Can you take pics with all white lights or atleast light it up with a flashlight and take the pics. This will make it much simpler to get a proper id on what it is.

How about these

 

[Mlarson]

How about these

 

[HB AL]

Much better, I have no idea maybe some kind of algae or non photosynthetic coral. Either way I would remove it.

 

[king aiptasia]

does it move? it's probably harmless