Id please, worm shape

[Unstoppable algae!]

Fast moving worm found in sand. Will quickly bury itself. Similar look to bristle worm but 100x the speed.

 

[Unstoppable algae!]

Fast moving worm found in sand. Will quickly bury itself. Similar look to bristle worm but 100x the speed.

Syllidae or Bobbitt worm? Getting mixed results while searching threads

 

[vetteguy53081]

Fast moving worm found in sand. Will quickly bury itself. Similar look to bristle worm but 100x the speed.

Looks like a capitellid worm reffered to as a lugworms which looks like a common earthworm and eats organic matter off the bottom. Not welcomed im my tanks