Snail ID needed

[RenHoek104]

Hey,
Anyone what snail this is? I have a lot of them and they seem to eat algae, so I'm not too worried, but I have no idea what they are.

Does anyone know? (Bottom left hand corner, that albalone looking thing)

Ren

[Nano]

Stomatella

[RenHoek104]

Man, that was quick. I've been searching online for the past 6 months.
Thanks Nano!
Ren