Black worm like no movement!

[fishy125]

Attached is a picture of them, only in one place in tank. Been doing this reef for seven years and I have no clue what it is? Any help is appreciated. Thank you.

 

[jcw]

It's amazing the stuff that just appears.

 

[GerritM]

That´s a sponge --> Carteriospongia vermifera
http://www.reeflex.net/tiere/1555_Carteriospongia_vermifera.htm

 

[fishy125]

Thank you for the reponse, it does resemble that sponge just not as big. Thanks again.

 

[mscarpena]

I agree. A very cool sponge.

 

[cr500_af]

Agreed. I put a "frag" of that sponge in my tank many moons ago, and only recently peered back into a cave and noticed that it is growing nicely back there.

 

[Bongo Shrimp]

Be careful. I had a sponge just like that that stung me.