Somthing eating my liverock?

[stateraise]

What ever it is. It is living in my liverock.All I have seen of it is some long really skinny worm like things streach out of my rock at night.What ever it is it is either eating my rock or it craps up a storm!Because it leaves big piles of what looks like rock dust which it spits out of the hole in my rock. Then it piles up.This is happing in 2 pices of rock.

 

[bri23520]

I have the same problem in my tank, but never got to see it at all. i dont know what it is :help:

 

[symon]

I have a couple of brittle starfish in my live rock, but i really don't think they can eat the rock itself! I think you should go read the hitchhiker page and see if something looks like what you are talking about, maybe even some pics???
https://forums.saltwaterfish.com/t/163864/reef-worms here is the link to the hitchhiker pake, read up on peanut works, see if that's what you are seeing