What are these

[BigFudge]

Tiny, almost hair-like wormy things that come out of the liverock? Jw. Hard to get a pic

 

[Starchar]

Vermetid Snail I would guess, hard to tell. Come from a small "tube" attached to the rock?

 

[BigFudge]

Yeah a few of the tubes have one or two but a couple have lots. Ha weird/hard to explain

 

[Ricksreef]

Probably a Spaghetti worm.

 

[Schism]

Probably a Spaghetti worm.

My guess as well.

 

[BigFudge]

Beneficial or bad? Or neither? Lol

 

[Schism]

Beneficial or bad? Or neither? Lol

Filter feeders, beneficial.