Which snail can't right itself on sand?

[Palancar]

Which snails are the ones that can't right themselves on sand?

 

[techigirl78]

astrea. some seem worse then others.

 

[dwhit0102]

and mexican turbos my dad just lost one a few days ago because he didn't turn one over and the hermits got to him

 

[AdidaKev]

I lose margaritas a lot due to this as well.

 

[sbgreen]

nerite snails
margarita
astrae

of course, the 3 that I have, but they all seem to reproduce in my tank to make up for their lack of gravitational control

 

[SumoBlenny]

My species of nerite don't have a problem with it, but my margarita and astrea snails do.

 

[Entropy]

Pretty much any snail if they land wrong. The astreas are the worst though. They have the perfect shape to land upside down stuck into the sand. They they basically become a free meal to anything that comes along.