Any idea what this 'worm' is??

[djl]

This 'worm' was presumably a hitchhiker on my Florida LR. It is about 1" long, 3/16" wide, grey or black in color, and covered in short white 'hairs'. It spends most of its time stationary on the wall of my tank, but does move around. Any idea what it is, and whether it is desirable or not? Thanks!

***dan

P.S. There is an image of this 'worm' here:

http://archive.reefcentral.com/vbull...threadid=66075

[Diatom2]

Dan~
As a rule Dr. Ron doesn't follow links,
Here you go

[ravenmore]

hard to tell from the pic but it looks like some sort of cuke?

[Agilecrux]

i second that.

how big is it?

[rshimek]

Hi,

Yes, the picture is not sufficiently detailed to help a lot with identification, but it definitely looks like a small filter feeding sea cucumber.

Here is some information about cukes.