When I first got my snails, I never noticed them "getting it on," but now it is CONSTANTLY taking place. I literally cannot look in my tank without seeing one of them trying to mate with the other.
I have three "apple" snails (yellow-colored) and one "mystery" snail (dark and light-brown colored). The dark one attempted to lay eggs last night, but they were in the water, so I tried moving them. I don't know yet if they will survive. (I do have about 2 inches of space above the water line.)
Anyway, back to my original question: Do they ever stop? Am I going to end up with hundreds of snails!?