Small, white, pin-sized snails on glass

[TehBrainz]

Any idea what kind of snails these are? I saw ~15-20 last night on the glass when lights were on moon setting, but couldn't get a good picture. When the lights started ramping up today I found a few and snapped these pictures.

 

[ISpeakForTheSeas]

Collonista (or relative) - reportedly harmless/beneficial CUC.

 

[DJC]

Any idea what kind of snails these are? I saw ~15-20 last night on the glass when lights were on moon setting, but couldn't get a good picture. When the lights started ramping up today I found a few and snapped these pictures.

So god dang cute huh !

Great CUC

 

[TehBrainz]

So god dang cute huh !

Great CUC

They are! Good to know. The tanks been up for nearly 3 years (rock is from an older system so closer to 6!) and this is the first I've seen these little buggers