Your's is a burrowing seacucumber.

You will see him feeding his mouth as he sticks his
harms into his mouth. They even eat the sand,
digesting what's in it, and out the other end it goes.

They are not harmful. They are beneficial.

However some of the bigger ones can be toxic if you
blenderize them. So don't let the big ones get
sucked into a powerhead. Also the sea apples are
quite toxic.

Wayne Sallee



jthread wrote on 11/3/2007 5:28 PM:
"Wayne Sallee" wrote in message
...
And here is a picture of a sea cucumber:
http://scilib.ucsd.edu/sio/nsf/fguid...dermata27.html

it knid of looks like a worm. and it does burrow back in the sand.

are sea cucumbers harmfull?

Wayne Sallee



Pszemol wrote on 11/3/2007 2:36 PM:
"Wayne Sallee" wrote in message
...
That's not a worm. It's a sea cucumber.
No, it looks like a worm - I have these too in my tanks...

I have identified mine as "spaghetti worm".
They multiply readily and clean the sand from debris.
Very beneficial!

Mine usually sit burowed in the sand, but from time to time
I see one or two in the open traveling -
maybe visiting friends on the opposite side of the tank ;-)

Here is a very nice article about these creatures:
http://www.reefkeeping.com/issues/2002-06/rs/index.php