ID this worn please

[mling]

I found this in my 16G clown fish tank.  This tank only has 2 clowns with lots of BTAs.

It is a bare bottom tank.

 

Fist pic is taken from above the tank, thus the reflection,

What type of worm is this ?  It is about 1.5 inches long.  Is it bunch of worms wound up to look like one ?

 

Since I don't have corals in this tank, I didn't think is could be of any harm so I've not removed it.

I figured I always need more scavengers in this tank and this probably is one.

[Coral Hind]

It is a spaghetti worm. I consider them harmless and a helpful part of the clean up crew.