This polychaete, a type of Christmas Tree Worm, is generally considered unsuitable for captive aquariums due to their requirements for particulate foods in the column column.  Many aquarists have had success with these animals when they are supplied with a variety of different sized foods, notably the Reef Nutrition line of feeds, which make these worms a good addition to an NPS or Azoo type setup.  However they usually come embedded in a colony of porites which require heavy lighting and are notoriously difficult to keep.

This amazing photo comes from the book Animal Earth which is due out in the next two weeks, and it includes a wide variety of fairly unknown critters.  You can check out a whole slew of the photos here, don’t miss it, there are a bunch of GREAT reef animals!