Archivarium 2004

26Bow · New Members Joined: 24 Jun 2003

Unknown critter on liverock... Question

Have no clue, please help and identify...

SLACkra

OK I believe that those are mushroom corals. they just need some time before they open up. or they could be some tube worms tube. other wise I believe that you have nothing to worry about.
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32g planted community
7.5g Nano Reef
1 four legged wonder napper
2 winged demons

26Bow · New Members Joined: 24 Jun 2003

Never was worried...whatever it is...it is alive...I watch it open and close...like it's filtering water...still looking for a definitive answer...

SoS · Advisors Joined: 16 Feb 2003 Location: New Jersey, USA

That would be a Sea Squirt(tunicate). They are harmless filter feeders. Sometimes they grow in awesome colors, unfortunately 99% of the time they are pretty drab.
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Don't buy the fish before you know the fish.

The Old Salt · Regulars Joined: 01 Apr 2003 Location: Alabama

Most of the ones around here are bright orange and yellow.

26bow, you are right, it is filtering water. Like SoS said, sea squirts are filter feeders. if you have a lot of live rock in the tank and not too much mechanical filtration, they'll probably live. They'd enjoy an occasional feeding, though.

SLACkra

sorry about bad info but they do look like mushrooms that arent opened up. I have tons of sea squirts in m tank there white and they live in the caves.
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32g planted community
7.5g Nano Reef
1 four legged wonder napper
2 winged demons

26Bow · New Members Joined: 24 Jun 2003

Thanks for the identification...

karlas · Moderators Joined: 07 Feb 2003

just some pages on sea sqiurts for you

http://depts.washington.edu/fhlk12/StudentProjects/Tun.biology.html

http://www.mermaid1.demon.co.uk/body_squirts.htm