More TBS snails to ID -- keep or remove?

[Giraffe0621]

Every time I look at the tank long enough I find someone new, leading to the fun "Keep me / Remove me" question.
Any ideas on IDs for these guys? Each is about 1 cm.

 

[Giraffe0621]

And another - strangest shaped snail I've found yet. Keeper? Or remove?

 

[sfin52]

They look nice not sure what type they are