Sand-covered multi-tentacle worm?

GuySmily · 10/31/2011, 05:22 PM

Just spotted this. I'm amazed that I'm still finding new stuff on my live rock this far along. It hasn't moved since I found it (except for the tentacles).

I also can't tell if there's something under the rock, in the shadows (behind the tentacles), or if it's nothing.

(The green thing is just a piece of Chaeto from my fuge)

edit:
While we're at it, how about an ID on this red thing? They've been popping up throughout my tank, and the often have a single string catching stuff as it floats through the tank:

Sk8r · 10/31/2011, 05:24 PM

Harmless. One of many worm types.

GuySmily · 10/31/2011, 06:22 PM

Cool. Are they stationary? (Didn't know that vermetid snails were stationary - someone ID'd the second pic as one)

mike&kel · 10/31/2011, 08:48 PM

I think it's called a hydra worm. Some can get massive 2' long+

GuySmily · 11/01/2011, 04:19 PM

Holy crap. Hopefully it won't get that big any time soon, lol. Thanks.

edit-
lol, the first search result is for a Final Fantasy 9 monster

I'll do more research when I get home.

cloak · 11/01/2011, 04:35 PM

The yellow one is a cirratulid worm. (harmless) The opaqe one with the sand covered tube is a Sabellarid worm. (harmless as well)

GuySmily · 11/01/2011, 06:39 PM

That poor hair worm... My gf thought it was algae first and plucked a strand before she realized it was an intelligent life form. That was a long time ago, and it is thriving and happy now. It hasn't moved since we found it. Neither has the mini brittle star next door. I guess these guys get enough to eat just from stray particles of marine cuisine / etc.

Thanks for the positive ID on the sabellarid worm too. Cool creature. I wonder where he's been until now.

10/31/2011, 05:22 PM	#1
GuySmily Registered Member Join Date: Sep 2011 Location: El Dorado Hills Posts: 181	Sand-covered multi-tentacle worm? Just spotted this. I'm amazed that I'm still finding new stuff on my live rock this far along. It hasn't moved since I found it (except for the tentacles). I also can't tell if there's something under the rock, in the shadows (behind the tentacles), or if it's nothing. (The green thing is just a piece of Chaeto from my fuge) edit: While we're at it, how about an ID on this red thing? They've been popping up throughout my tank, and the often have a single string catching stuff as it floats through the tank:

10/31/2011, 05:24 PM	#2
Sk8r RC Mod Join Date: Feb 2006 Location: Spokane WA Posts: 34,628 Blog Entries: 55	Harmless. One of many worm types. __________________ Sk8r Salinity 1.024-6; alkalinity 8.3-9.3 on KH scale; calcium 420; magnesium 1300, temp 78-80, nitrate .2. Ammonia 0. No filters: lps tank. Alk and cal won't rise if mg is low. Current Tank Info: 105g AquaVim wedge, yellow tang, sailfin blenny,royal gramma, ocellaris clown pair, yellow watchman, 100 microceriths, 25 tiny hermits, a 4" conch, 1" nassarius, recovering from 2 year hiatus with daily water change of 10%.

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10/31/2011, 06:22 PM	#3
GuySmily Registered Member Join Date: Sep 2011 Location: El Dorado Hills Posts: 181	Cool. Are they stationary? (Didn't know that vermetid snails were stationary - someone ID'd the second pic as one)

10/31/2011, 08:48 PM	#4
mike&kel Registered Member Join Date: Jul 2009 Location: fresno, ca Posts: 131	I think it's called a hydra worm. Some can get massive 2' long+

11/01/2011, 04:19 PM	#5
GuySmily Registered Member Join Date: Sep 2011 Location: El Dorado Hills Posts: 181	Holy crap. Hopefully it won't get that big any time soon, lol. Thanks. edit- lol, the first search result is for a Final Fantasy 9 monster I'll do more research when I get home.

11/01/2011, 04:35 PM	#6
cloak Moved On Join Date: Jul 2000 Location: Stockton, CA Posts: 14,854	The yellow one is a cirratulid worm. (harmless) The opaqe one with the sand covered tube is a Sabellarid worm. (harmless as well)

11/01/2011, 06:39 PM	#7
GuySmily Registered Member Join Date: Sep 2011 Location: El Dorado Hills Posts: 181	That poor hair worm... My gf thought it was algae first and plucked a strand before she realized it was an intelligent life form. That was a long time ago, and it is thriving and happy now. It hasn't moved since we found it. Neither has the mini brittle star next door. I guess these guys get enough to eat just from stray particles of marine cuisine / etc. Thanks for the positive ID on the sabellarid worm too. Cool creature. I wonder where he's been until now.