need id,sorry no pic

[stumpy]

Sticking out of several holes on my live rock is a tenticle looking something. It is about the size of a pencil lead. It is a tanish/white color with brown bands on it. The tenticals just wave around in the water then pull back into the rock. I have seen as many as 4 at one time sticking out of differant holes.Any idea what this is?

 

[reefrunner69]

Brittle starfish arms Beneficial detrivores and common hitchikers on LR.

 

[stumpy]

Will it stay in the rock?

 

[reefrunner69]

maybe, there is no way to tell, if it gets enough food where it's at, it will stay, if not it will move.