Actually from what I was taught apple snails cannot breed by themselves. unlike many snails, they actually do need a partner apparently. So like the post before me, that is right :) Apples are actually a bit harder to breed, and do not breed in any condition of water. Here in my town, if your apple snails breed people will sell their limbs for those apple snail babies!!! Here, that is how rare they breed. (exageration, but not far off)
Breed for the breed, not for the money; the words any REAL breeder would understand.
You must know nothing in order to know all, for all is nothing and nothing is for all.