Tiny snail ID

[Billango]

Some tiny snails at petco for free if I want them. Maybe a couple types of snails here. Can I get some help IDing them?

 

[Cthulukelele]

Top one looks a lot like a Virgin Nerite

Virgin Nerites

Resides : Rocks and glass Consumes : Film Algae, Diatoms, Hair Algae, and some species of Cyanobacteria Max Size : 0.4 or 10mm Origin : Caribbean Availability:...

www.reefcleaners.org

 

[shakacuz]

i believe its a varied amount of different species.

i do agree that the first picture could be a nerite. there are some that resemble a trochus snail, other a turbo snail.

often times collonista snails resemble baby trochus snails, so that could be a possibility as well.