The Feather Duster Worm, also known as the Fan Worm, is a beautiful and unique addition to a saltwater aquarium. These worms are filter feeders and require a tank with a salinity level of 1.020-1.025.
 
Feather Duster Worms come in a variety of colors, including red, pink, orange, and white, and can grow up to 12 inches in length. They are generally peaceful and do not pose a threat to other fish or invertebrates in the tank.
 
In terms of tank decoration, Feather Duster Worms prefer to attach themselves to live rock or other structures. They extend their beautiful feather-like tentacles into the water to collect small particles of food and nutrients.
 
Feather Duster Worms are a beautiful and fascinating addition to a mature saltwater aquarium. They do require a stable and mature aquarium to thrive, as they are sensitive to changes in water quality. They are best suited for experienced aquarists who can provide them with the proper care and environment.