Not sure if i should remove these guys?

[absolutkush]

These came on some live rock I recently picked up. Not sure if beneficial or a pest. Anyone know the proper name for these and if they are ok to keep or should I start working on removing them?

 

[absolutkush]

 

[cdemoss01]

They almost look like cluster dusters.

 

[littlefoxx]

Remove, look like those vermidid snails to me

 

[DaJMasta]

Looks like vermetids to me, you can see if they cast their line when they open to confirm, if that's the case, the near universal opinion is that they're bad and you should get to removing them.

 

[ISpeakForTheSeas]

Those are large vermetid snails - most people would say to remove them.

 

[8-Bit Reefer]

I have a few in my tank and don't cause any issues BUT can quickly multiply in some tanks, and can cause injury while working inside the tank.

 

[absolutkush]

thanks all, will start removing little by little.

 

[absolutkush]

Was able to remove each rock from the tank and destroy the tubes with needle nose pliers and clear remnants with a toothbrush.
Tedious but worth it.
Still working on the GHA.