Snail hitchhiker id please

[nathan1986]

Just noticed this snail in my gf's biocube the other day. Upon further inspection ive found 2 others and a super tiny baby one. Dunno if my pics will show it well so ill try to describe it as well. Its shell is almost like half an oyster with the snail "flesh" around the circumference of the shell. Almost like a rolley polley/potato bug if youve ever seen one of those. And are these snails fast. They seem to be eating algae off the glass. I just want to know what kind they are. Thanks for all and any help

 

[Betta132]

I've totally forgotten the name of those, but they're harmless snails. Somebody is sure to chime in with the name.

 

[sam.basye]

^^ Stomatella snail

 

[nathan1986]

Just googled them and yes thats them! Thank you

 

[thedasher]

Had two of these in my tank about a months ago, now I have atleast 30.