ID Please

[martinplayer]

I have 3 of these clusters of tiny, red, thread like arms. Anyone know what they might be and if they are ok?

 

[Krenshaw22]

Spaghetti worm

 

[Bore-Punch]

Spaghetti worm

+1 Terebellidae aka Spaghetti worm

http://www.chucksaddiction.com/cleanupcrew.html

great for your tank

 

[kingfisher62]

I have hundreds of them. Great cleaners not a speck of food is out of reach of thier
tentacles if it falls on the sand.
Click the last pic for video

 

[davantalus]

Wonder if he has trouble with tying himself in knots...