What is it?
 

Weird worm, anybody know what it is? It usually looks like a grey tube and is mainly nocturnal. 3mm in diameter and several centimetres long. One end stays put most of the time in its rock hole.

http://i882.photobucket.com/albums/a...ps7oweto6n.jpg

Is that not a Eunice worm

http://www.advancedaquarist.com/blog...rms-were-scary

possibly also a peanut worm, but I don't think I've ever seen more than their tentacles out of their hole.

I don't think so, it is pretty much smooth, no clear segment sections or bristles. Hope not anyway...

I once bought a bunch of really fresh Caribbean LR from King Eds.

Bought same day it arrived.

It had a ton of peanut worms that actually looked really similar, they just never came out of their holes like that.

Kind of like a fatter, uglier fan worm.

I thought of Peanut worm before and thought no the shape is not right. But now that you mentioned it I went back to google and I think it is a peanut worm.

http://chucksaddiction.thefishestate...itchworms.html

http://melevsreef.com/blogs/admin?page=3

http://www.captivereefs.com/forum/in.../#.VsyyZulbo_g

Here is a better link for those interested:

https://reefbuilders.com/2015/05/11/...reef-aquarium/

So much to learn about these guys:

http://spongebob.wikia.com/wiki/Peanut_Worms

good read on the reef builders article.

I now know there is such a thing as a penis worm.

That pretty much puts an end to the idea of nude reef keeping...

yeah.

my basement tenant put the kaibosh on that a long time ago.