Fastest breeding live bearer

[OnceLoyal]

Just curious between the few mentioned below if anyone knows which will breed the quickest?

Mollies, Platties, or swords?? Also anyone know how well guppies will breed in a big tank? Like 480g? I will keep the filtration flow down as much as possible. I know the question is rather vague, but I guess what I am wondering is has anyone had breedi g happen in a big tank without really trying to breed with above mentioned fish? I bred mollies before in a 20 gallon, but it was on purpose.
I will probably mix it up and have a bit of everything, but was just curious if anyone has an idea.

 

[Davidiator]

guppies

never bred them purposely

in bigger tanks their fry have better chance of surviving

 

[Deadliestviper7]

Guppies and ricefish,keep the temp above 70 for best results.

 

[Coryloach]

I kept platies and guppies for some years.

In my personal experience, the population will grow to the size of the tank. In my 100g tank the number of adult platy population was always constant, around 20-30 fish for years.....One needs to pull out the newborns and grow them elsewhere if they want more fish...

Platy fry are better at surviving than guppy fry in my opinion. The latter are a bit too adventurous and are easier snacks for bigger fish. Platy fry can successfully hide for weeks...until they pack on some size.