Are these worms harmful?

jojo_b

Member
Almost looks like a little bristleworm. I leave mine alone, since they haven't eaten anything important and they are detritovores (I think).
 

bang guy

Moderator
It's a type of Bristleworm called a Cirratulid. The common name is Hair Worm.
They are very beneficial for sand beds because they eat detritus both below and above the surface of the sand.
 
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