What are these?

[ScottyD36]

This morning I woke up and saw these little guys popping up on my rocks. I am trying to ID what they are. I am hoping they are little feather dusters and not snails. Can anyone give me a positive ID please.

 

[WV Reefer]

This morning I woke up and saw these little guys popping up on my rocks. I am trying to ID what they are. I am hoping they are little feather dusters and not snails. Can anyone give me a positive ID please.

Spirorbid worms. Good guys.

 

[Softhammer]

Hard to tell but if there are feathery bits versus slime there feather dusters. They do not look like vermetids just because the shells are white. Vermetids are typically a tan color.

 

[Cell]

Spirorbid.

 

[vetteguy53081]

spirobids are reef safe and easily removed if needed . A little feather will come out for feeding

 

[40g Nano]

Filter feeders