Genus
Common name: Peanut Worm
Scientific name: Sipunculus
Sipunculus is a genus of marine worms known as peanut worms due to their shape. They are not commonly kept in reef aquariums but can be interesting to advanced hobbyists. These worms are detritivores, consuming organic matter in the substrate. They can help maintain a clean sand bed but may be sensitive to water quality. They are not aggressive and have a low impact on tank biota.