long thin arms/tentacles coming from live rock

kezzaroo

Reefing newb
im new to salt water aquariums any way recently ive been looking really hard and my live rock and suddenly i saw something it was very thin and looked like arms/tentacles, but i cant see no body, its arms are pretty much like the brittle star fish

but i have found lots of them in all the little creavis in the rock hopefully there not dangerous as i got loads

please see the photo sorry its not very clear but its hard taking a photo of something so small
 

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Its hard to tell from the picture, but you are likely seeing the arms from micro brittle stars. They hide in the rocks and you pretty much only see their arms waving in the water sometimes as they reach out from the rocks! These are good cleaners and a great hitchhiker to have :)
 
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