easiest snail to breed?

[c_scherer123]

What is the easiest saltwater snail to breed? Preferably something that would breed and proliferate in a community tank.
I am looking for something that can provide a snack for a future mantis which will be in another tank.

 

[VacavilleFC3S]

the easiest i know of is stomatella snails, there not much a snack for mantis though