Can you ID this for me?

[Cynful]

Was checking out my tank after lights out and saw this swimming around. At first I thought amphipod but they usually shy away from my light. It's only one. I think. LOL Tank is about 5 months old but nothing new added for about two months.

 

[Gtinnel]

I'd guess an epitoke from a polychaete worm.
Do you have bristleworms in the tank?

 

[Cynful]

I'd guess an epitoke from a polychaete worm.
Do you have bristleworms in the tank?

I've not seen any.