How common are these?

[cioutlaw]

How common are these? I found about 10 on a rock in my tank...pretty cool ( I borrowed the pic from melevsreef.com)

 

[Andrew]

What are you pointing at in the picture? If you mean the tubes comming out of the sandbed, I have a few of those and have seen them on the rocks and sandbed at the lfs so I guess they are pretty common.

 

[cioutlaw]

yes the little tubes made of sand...Its my first reef tank & I hadnt seen them before. Thanks

 

[joelwalk]

I have a lot of them in my tank too. Just curious what they were??

 

[viceversabrd]

i believe they are a common hitchhiker on live rock, I also have some in my aquarium
viceversabrd

 

[Paintbug]

they are called Spionid Worms. heres some info toward the bottom of the page http://www.reefkeeping.com/issues/2003-05/rs/index.php