Strange Creature?

sfoley23

New Member
Hello all.
I recently got this tank from someone so I am not aware of some of the more hidden creatures. I found this sticking out of the bottom of one of the rocks. The one end is a long white tube/arm like object that appears to attach to something. Off of that there is a claw like portion. There may be a third portion that extends all the way to the other side of the rock and is a white arm as well. The pictures are kinda blurry but any help with identification is much appreciated. After my initial research I thought it was a bristlestar but it does not appear to be bristle like in appearance it looks smooth. I outlined in red on one of the pictures the apparent shape it makes.
Any help is appreciated thanks!!!
 

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