Anybody ID this Tube or Feather Duster worm?

[Skyhigh]

calcium tube are all going to to in 1 class and slime tube would be the other

[Wy Renegade]

calcium tube are all going to to in 1 class and slime tube would be the other

Not to argue, but techniqually they are both in the same class: Class Polychaeta (Feather Duster worms) of the Phylum Annelida (the segmented worms). Polychaeta has four different families: Sabellidae (soft tubes), Serpulidae (Calcarous tubes), Spirorbidae (diminitive tubes), and Sabellaridae (tubes of cemented sand or substrate grains). I agree that they are family Serpulidae, but I don't think they are Protula magnifica (Coco worms) or Spirobranchus giganteus (Christmas tree worms).