Please help. Is this good or bad?

[ILMX20]

I was looking at my tank today, and I saw this guy on my torch coral. Ive never seen him before and I do not known if it’s its a bad thing or not. should i get rid it? How would I go about doing that? What exactly is it? Is it a good or a bad thing that it’s there?
I think he looks like omen of those feather worms (or something? I’m sorry, I don’t know one much about them) but im just concerned and a bit confused.
Thanks so much

 

[Copingwithpods]

It's a harmless feather duster and a very nice one at that

 

[Chrisfish]

It's a harmless feather duster and a very nice one at that

+1

 

[NS Mike D]

Pecto charges $12 for them. congrats on your freebee. They make the tube, it's like soft cardboard, so if you ever decide to move it, be gentle. Sometimes they shed their heads (which are actually their gills). They are filter feeders, so if you have a new tank they benefit from a little target feeding of pyhto, reef roids, etc. If you feed frozen, and use tank water to thaw, they like that water

 

[Copingwithpods]

Pecto charges $12 for them. congrats on your freebee. They make the tube, it's like soft cardboard, so if you ever decide to move it, be gentle. Sometimes they shed their heads (which are actually their gills). They are filter feeders, so if you have a new tank they benefit from a little target feeding of pyhto, reef roids, etc. If you feed frozen, and use tank water to thaw, they like that water

Lol soft cardboard is so spot on