What Are These Guys?

[BamboozleBean]

These guys are on a piece of live rock I got from my LFS, I’m new to the hobby so I don’t have any background with hitchhikers. Any ideas what they are? And if they’re good to bad? Sorry the pictures are bad.

 

[Flippers4pups]

Sorry, need a better picture.

 

[RJ F.]

A better pic would help. Sponge and small filter feeder would be my first guess

 

[Halal Hotdog]

First picture is a vermatid snail, pest. 2nd picture can't see any details.

 

[BamboozleBean]

First picture is a vermatid snail, pest. 2nd picture can't see any details.

Sorry it’s hard to get a picture since it’s so small, it looks like it’s closed up though. That’s odd that’d be a snail though, it hasn’t moved at all. Good guy I’m assuming?

 

[BamboozleBean]

First picture is a vermatid snail, pest. 2nd picture can't see any details.

Oops sorry, didn’t see the pest part.