creature of the night!

[710delta]

A week ago I bought some lr from my lfs. Last night after the lights had been out for some time, I noticed a long tan something that was attached to my lr and streched out digging through my substrate. The thing was about the size of a coffee straw and streched about 2-3 inches. When I shined a flashlight on the creature it pulled itself back behing the rock. I could not get a good look to determine if or how it was attached to the lr. I am wondering if anybody has any idea of what this may be.

 

[710delta]

As far as I could tell, it pulled back into itself like pulling the toe from the sock. Is this a worm that I should worry about or is it fine to leave.

 

[marine fanatic]

I saw something similar in my tank recenty. I added some new Fiji LR and that night I saw what looked exactly like a bristleworm.....possibly the same thing you have???? Possible

 

[teetee]

It is incredible what comes out when the lights are turned off! One of my most recent hitchhiker only apears during the evening. It is a slugflatworn type creature. Very fascinating as it glides across the glass. Other nightly creatures include pistol shrimps, snails, brittle stars and a variiety of tiny bug-like thins that scamper about. Try night time viewing with a red light bulb. Apparently that light is not noticed by night time folk.