What are these weird growths near my Mushroom coral?

[SquidySpecs]

Looks like tiny tubes that each have two tendril things. I think they could be Vermitid snails but none of the pictures online looked quite like them. Another guess is Hydroids but that seems very unlikely. They have only popped up in this certain area next to my Mushroom.

 

[lilithereefer]

those are either some type of snail or those could possibly be some type of montipora

 

[lilithereefer]

whoops i meant nudibranch lol

 

[elysics]

Boring spionid worms

Are they on the main rockwork?

 

[MaxTremors]

As mentioned, spionid worms, harmless filter feeders.

 

[SquidySpecs]

Boring spionid worms

Are they on the main rockwork?

I have spirorbid worms everywhere else and they don't look like this. These are only on my mushroom frag and they don't have a spiral shell.

 

[DrZoidburg]

I have spirorbid worms everywhere else and they don't look like this. These are only on my mushroom frag and they don't have a spiral shell.

Two different creatures entirely.

 

[SquidySpecs]

Two different creatures entirely.

Oooh I thought you mispelled spirorbid, I'm sorry. Yes Spionid worms are probably what they are, thank you!