Little white tubes - What are they

[gavinu]

Hi,

Newbie to ReefCentral here: :-)

I have a reef tank that I've been very slowly building up. It's been running for more than a year. About 3 weeks ago I moved the entire tank to a different location in the house. This seems to have jolted the tank into new life. I'm suddenly getting a spurt of new things appearing on my LR.

On of these things I have not yet identified:
I have these little milky white tube things appearing attached to the rock. They are less than 1/2 inch long and seem to have very short little tentacle like things (almost microscopic) at the end.

I can't seem to get a even half decent pic of them.

Any help identifying these things would be much appreciated.

thanks
Gavin

[Ritten]

Hard to tell with out a picture. Sounds like harmless tube worms. Could they have been growing in the shade and in the transfer your rocks were moved to expose them?

[gavinu]

That is very possible. I did completely re-arrange.

Thanks for the advice

[Travis L. Stevens]

My guesses are Feather Dusters, Tube Worms, Vermetid Snails (Usually greenish-brown tube, though), and/or Q-Tip Sponges.

[guitar_lord]

I agree...
tubeworms...

[Ritten]

and harmless, right?

[allen00se]

sponges are my vote

[gavinu]

I'd be really pleased if they turn out to be feather dusters. The are still very tiny so let's see. :cool:

[sttroyiii]

Try looking up pictures of Spirobid worms. They are tiny little white dots that are spirals on closer inspection. They have a tiny little filter feeding mouth. Mine almost look like tiny little white or red feather duster. Spirobid worms are harmless.

[Sk8r]

spionid worms, if the tentacles are 2 in number...harmless, a water-cleaner.

[impur]

Sounds like tube worms. Do they give off a stringy mucus thread when you feed the tank? I had tons of these, they seem to come and go in my tank.

[shinny]

I have sponges that seem to look like that.

[REEFKEEPA]

BARNACLES!