Genus
Common name: Bristle Worms
Scientific name: Acanthella
Acanthella is a genus of polychaete worms known for their bristle-like setae. These worms are often found in reef aquariums, where they play a role in the cleanup crew by consuming detritus and leftover food. They are generally considered beneficial to the tank's ecosystem, but large populations can indicate overfeeding or poor tank maintenance. Acanthella species are not aggressive and usually pose no threat to other tank inhabitants.