I voted 2 because I have some male guppies, and a whole bunch of Molly fry.
The mollies were a bit of a mistake - I bought their parents because they were/are absolutely lovely - but I had researched poorly [bad, bad, fishkeeper

] and hadn't accounted for the fact that
a) they like [more than] a bit of salt, which I can't provide and
b ) they make rabbits look like proponents of zero population growth - and I have nowhere to rehome a bazillion fry.
I rehomed the parents, but still have the babies. Even if I set up a brackish tank ( which I have considered) I still have the where-do-the-*next* lot-of-fry-go problem. If I put them into my new (freshwater) tank, I still have the salt issue.
But they are lovely fish, and if I didn't think my family would have an absolute hysteric, would gladly set up two brackish tanks, and have male mollies in one, and females in another LOL. But that won't be happening any time soon, I'm afraid - so I'm going to have to rehome them somehow.
So many livebearers are so beautiful.....in an ideal world, I'd love some pure Endlers