Will either of these snails present a problem?

[Frogspon]

Doing some lights out maintenance and noticed these two baby snails on my clam's shell towards the mantle. Are either of them a concern?

 

[JGT]

Looks like a nassarius and colonista, should be OK. Small pyramid snails are the ones you don’t want with a clam.

 

[OrionN]

No problem. They are benign fauna in your system.

 

[Frogspon]

Thanks guys