What is this??

[Becca]

can anyone tell me what this is and if it is okay to be in my tank?
Its living in one of my live rocks and just started coming out.
The only thing I have seen is its legs (I guess that what that is) I have not seen a body.

 

[Bifferwine]

Kinda hard to tell from the pics, but my best guess is that it's a brittle star or serpent star, which are reef safe and great cleaners. That's a nice hitch hiker to find on your live rock.

 

[yote]

I'm gonna agree with Biff.I think you've picked up a hitch hiking brittle star.

 

[WannaRace]

I really can't tell either from the pics, but could it be a bristle worm?

 

[Bifferwine]

Bristleworms are pinkish and are the same thickness their entire length. It doesn't look like a bristleworm.

 

[reeffreak]

Agreed,looks like the legs of a brittle star,

 

[Becca]

I got another picture of it last night.
If it is a Brittle star will it ever come out of the rock all the way so I can see its body? The only part that I can ever see is its legs.

 

[Bifferwine]

Can't see the pic.

 

[daugherty]

no pic

 

[yote]

I cant see the pic either.But if it is a brittle star.They hardly ever come completely out of the rock.They will reach out with thier legs to feel for food while keeping the body in the safety of the rock.