So I have two nerite snails now, a Zebra and a Horned. I don't know what gender they are. I know there won't be snailsplosions without brackish water, but I was curious if zebras and horned can even reproduce anyways. And if they can't, will they even lay eggs? Do you need two compatible snails to get one to lay eggs? Like maybe hormones would signal it. Or do they just lay eggs when they feel like it, with or without another snail nearby?