Pyramid snail or something else?

[ATXreefer]

Is this a pyramid snail or some kind of worm? It’s extending a pair of appendages and dragging them around the bottom of tank.

 

[ATXreefer]

Fyi there is a small feather duster in front of the hitchhiker I’m trying to ID in the first picture. Please ignore that.

 

[EeyoreIsMySpiritAnimal]

It's either a Spionid or Chaetopterid.
For more information, scroll down to the "Worms with two tentacles" section: https://reefkeeping.com/issues/2003-05/rs/index.htm

 

[ATXreefer]

Thank you!