Mystery snail sexing

[TigerBarbs]

Have 3 mystery snails that I've had for a month and I've heard that they usually breed a lot in tanks. Mine have not yet(that I've seen) how do they breed? I have not seen any eggs from them so I'm wondering if I have 3 of the same sex how do u sex them?

 

[siva]

Mystery snails are usually actually apple snails. You look inside the shell to sex them. The males have a penis on the opposite side of there snorkel. The females have nothing visible. They lay an egg sack above the water line. The eggs must be an extremely moist place to hatch. For more info go to applesnail.net.