Big Worm ID

[JamieP]

24739

Please help me ID this camouflaged creature. Sorry for the poor quality picture, it was through 3/4" glass and about 12-16" back.
I just noticed it today went I went home for lunch. Lights came on at noon and it was probably 12:15 pm. It was not responsive to light or noise. I shined am LED flash light right on it and it didn't move. Fish were swimming directly above it and it did not react. I tapped on the glass with the flash light and it did not react to that either. There was about 4" of the worm exposed. It did not move at all during my observations. The skin appeared smooth and not segmented. I could not see legs, but about 3/4 down the creature you can see a series of projections ( tube feet?). If I was pressed to venture a guess, I would say it was a skinny cucumber (added a pinky cuke arounnd a year ago and it promptly disappeared).
Any one have any guesses or ideas?

[polarbear]

its a type of peanut worm if im not mistaken. not harmful. i have them in my 90 gallon

[JamieP]

Thanks for the response. I hadn't even thought of it being a peanut worm since it was 4", but it does look like one. After a little digging on Google I did see they can get that big. Makes sense to me unless some one else disagrees.