what lives in the sand?

[808]

Couple nights ago i decided to check out my tank when it was all dark to see what goes on. I got my flashlight and started peeking around. Saw some stuff i don't see during the day, and one of them was some kind of anemone looking thing in the sand. There was about 10-12 arm-looking things sticking out of the sand, swaying in the current. Looked to be about 1/2" long or so with something on the tips of it, and it looked to be mostly clear in color. I was aiming the light on it while i was staring at it, and when the light was on it, it slowly started to retract in to the sand...sorta like a feather duster. After a little while it was totally gone, hiding in the sand. Every night since then i went to take a peek, and it's always in the exact same place, swaying in the current, and i don't have long to look at it cause when it sees the light it retracts in to the sand again. I wanna say the ends look like it has something fuzzy on the end? Anybody know what this is, or know where i can check for this kind of thing?

[quarryshark]

Maybe a q-tip sponge. can you snap a quick pic? Or some kind of duster, but they usually reside on the rock.

[melosu58]

I agree a pic would be nice

[Devilishturtles]

Sounds like astrangia...but I thought they lived on the rock. And my mind could be messing with me too.

[Fluff]

Maybe a spaghetti worm. They live in the sand and throw out sticky tentacles to gather food.

[808]

hmm, i'll try take a pic tonight then. It's really small so i'm not sure how good of a pic i'll get, but i'll see what i can do.