ID help!!

[BMahura]

I put a rock into my fuge from my display last week and was just checking out the life before the lights came on in a fuge and found this creepy looking thing. It had about 6 long tentacles which looked to be coming out of its head and when I shone the light on it to get a better look they slowly retracted. Does anybody have any idea what this is!9592

[BMahura]

Bump

[windcoast reefs]

It's kinda hard to make out in the photo. How big is it, what kinda coloring as well? Also does it stay in one spot or move?

[BMahura]

It's about an inch tall at least that's all I can see of it. I got a better picture of it. It's grayish brown with white spots in it9603

[BMahura]

It seems to be staying in one spot as well however it clearly is light sensitive and moves when a bright light is shone on it

[MrGoodbytes]

It looks like a kind of sea cucumber to me. I had my suspicions with the first pic but the second clears it up.

[monocus]

to me it looks almost like a sea apple-could potentially kill your whole tank

[BMahura]

Can anybody else confirm this? I want to make sure its harmful before I rip my fuge apart to get it.

[christyf5]

Can anybody else confirm this? I want to make sure its harmful before I rip my fuge apart to get it.

I'm vote for sea cucumber but I will also say that most things that are poisonous are brightly colored. I'd hazard a guess that this is likely harmless.

Just my two cents though.

[Nano]

I agree with christy, except for the harmless part, kinda.
the way I see it is if you don't know what it is don't trust it.
lol that applies to reefing by the way nothing else.

[christyf5]

Maybe the one at the bottom of the page??
http://www.surg.co.za/home/html/qanda/qanda_2011/sea_cucumbers.htm

http://www.surg.co.za/home/images/qanda_2011/05/roweia_fraudenfeldii.jpg

[BMahura]

Stating to think that it's a cucumber. However I can seem to find what kind it is. Does anybody have a good invert identification data base that they use?

[Enigma]

Sea cucumber gets my vote, too.

I think the only real risk is if it dies, or barfs up its internal organ. It could poison your whole tank. I would remove it for that reason alone, but my risk acceptance is pretty low.