ID Please

[rinker]

I noticed this blue grey colored stuff growing on a live rock in a dark corner of my 90 gallon. First I have ever noticed it, but strangely enough I saw this same stuff in a tank in my LFS where i purchased a purple reef lobster.
Any idea what this is????

 

[coraljunky]

A type of sponge, not sure what species tho

 

[yosemite sam]

Yes, it appears to be a type of sponge.

 

[ric maniac]

Oh, I thought you were talking about the little stick things. I agree though, it looks like a sponge.

 

[big]

I have left super glue strand that look just like that after gluing a frag.

BUT yes I would say too SPONGE.

........ Do not know the name but sponge of some kind.