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.

View attachment 3059112

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.

View attachment 3059112

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