Help me ID a few snails please?

[ChubbyBhunnie]

Hello all! These three were hitching on some frags I bought today...are any of them worth keeping? Thanks in advance! I'm very new to this

 

[JPM San Diego]

A plain white background would make ID easier and more reliable

 

[ChubbyBhunnie]

A plain white background would make ID easier and more reliable

I'll try to when I get home from my overnight shift!

 

[ChubbyBhunnie]

A plain white background would make ID easier and more reliable

 

[WheatToast]

All of these are beneficial snails that graze on algae and multiply over time.
1. and 3. are Stomatella snails. Beige coloration is more common than stripes.
2. is a Collonista snail, which are more rounded than undesirable sundial snails. These stay very small.

 

[ChubbyBhunnie]

All of these are beneficial snails that graze on algae and multiply over time.
1. and 3. are Stomatella snails. Beige coloration is more common than stripes.
2. is a Collonista snail, which are more rounded than undesirable sundial snails. These stay very small.

Thank you so much! They got tossed right in