Can a Bristle/Fire Worm eat fish?

[zhasan]

Hey Guys! I just added a new fire fish last night and it saw it this morning before going to work. When I came back today it seems to be missing completely like it was never there before. When I put in some food this morning I noticed a work in the tank... It vanished before I could take a picture of it.

I googled some images and I think its a bristle worm.. or so I want to think!

Any thoughts if these guys can kill a fish?