Wondering what kind of snails these are that came with my live rock.

[fishtalk97]

Hello, so I just got my first tank about 2 and a half months ago. The first thing in my tank was live rock and I noticed a SUPER small snail on the rock. There is now probably 3 or 4 of them and they have gotten much bigger. I seeing them “blowing bubbles” all the time and recently have noticed a bunch of little circular white dots on my zoanthids and a little on other parts of the tank. If you know what kind of snail they are or if I should be worried I would really appreciate the help. Attaching pics of the biggest one “blowing bubbles” and pics my zoanthids, Thanks!

 

[AquaticJamaica]

Possibly stomatella snail

 

[fishtalk97]

 

[fishtalk97]

Posted pics of the biggest one bcs the video wasn’t working.

 

[taricha]

stomatella broadcasting eggs. (why they can reproduce well in tanks.) they are great

 

[samnaz]

The small spiral shaped tube worms near/on the zoas frag and plug are Spirorbid worms.

Ive never seen them grow on coral flesh like that. I wonder if that is what’s irritating the zoas...?