Need help with my chaeto

[harryZz]

Good day everyone,
I am new to this hobby, I bought some chaeto for my refugium from my local fish store, and recently fund those things within the algae, with a open mouth, what’s those called? Are those bad? What should i do?

 

[vetteguy53081]

Tube worms that use their fans to capture food. You can remove and discard or leave in sump only

 

[KrisReef]

Learn to take better pictures using the center of the frame to focus on the subject: In this case feather worms, which are a good hitchhiker.
Gl!
Kris