What is this ?

Sorry no photo, I'm away from home.
So was chatting to the charming lady at home tonight, when she informs me that a tenticle looking worm sort of something had come from out of the sand almost 4 inches long and then sort of shrunk back into the sand ?

Yellow ish in color, 4 inches long, about the size of a pencil.

Any ideas on what the heck this is ?

 

bristle worm?

 

Yellow-ish in color sounds like a spaghetti worm. But the are fairly small and I do not think that is what you have here.

My best guess would have to be a bristle worm - a good sand cleaner for your tank.

 

tell her to go here and see if she finds it

Worm Hitch Hikers

 

I was under the impression that a bristlemworm was a nightmare ?

 

me to and i still am.

idk no one can make me think they are good. thats why i have a arrow crab ;D

 

Bristle worms are great members of your clean up crew. Not really a huggable creature, but beneficial.

 

I just took a gorilla crab out yesterday, why didn't he eat it ?

 

It could be a peanut worm. They live in the substrate or rocks.

 

so is a peanut worm "ok" or bad ?

And again, this thing is pretty gig, why wouldnt the Gorilla crab eat it ? he managed to catch and eat my Golden Headed Goby without any problems at all.