unplanned babies

[KarlTh]

I am refering to the females yes thats larger than the male as what I can see

That's not the main difference in platys. It's the presence of male equipment which is the giveaway.

 

[Snakes]

i would do water changes as necessary to keep your ammonia and nitrite as close to zero as possible so that the adults survive.

How Often do u suggest water changes and what % u recommend

 

[OldMan47]

How Often do u suggest water changes and what % u recommend

Do a water change as often as it is needed to keep your levels below 0.25 ppm of ammonia and below 0.25 ppm of nitrites. The fry, if any survive, will also benefit from good water conditions. I have seen some half truths about livebearers always carrying enough sperm to support 6 months of fry production. It is likely to be true for some of the more common livebearers but is not true for things like goodeids. They need a fresh mating for each brood to be produced.
To tell a male from a female in platies and many of the more common livebearers, The fin right behind where they eliminate waste will be a triangular shape on a female and will be modified into a long thin thing that is used to impregnate the female on a male. It is called a gonopodium and I am sure you can find pictures of one using that word in a google search. Many of the common fish also have secondary characteristics such as colored fins, a sword shaped tail etc. but the gonopodium is the sure way to tell on a common livebearer.