Assasin snails

[Balticbob]

I have a few pics ere, and I want to know if these 2 assassins are mating?

 

[GuppyBreeder180604]

maybe, i want to say yes, by the way are those in the back nerite snails?, because let me tell you if you like them and want to keep them alive that assasin snails can hunt and eat nerite snails