Snail Id?

[Intricateart]

A couple of these snails popped up in our tank over the last few weeks. Haven't put anything new in tank for a long while, but our reef has been running for about 3 years with a lot of wild collected live rock. They come out in the evening and seem to eat a lot of algae. Just looking for an ID on these useful little hitchhikers.

Another one same evening.

 

[Squishie89]

Looks like Stomatella to me. They are great additions to have, reef safe. (Do me a favor and good image search Stomatella just to be sure, your first image is a bit hard to see)

 

[Intricateart]

Yep, Stomatella. The white/grey pattern through me off. I have seen the brown before but this color is new to me. Just found five more of various sizes. Thanks for the ID.