How do you make ideal breeding conditions for a platy?

Make sure you have warm water (83-84 degrees) Put three breeders in an isolation tank (10 gallons) by themselves Lots of plants! Dark gravel if you want to get really picky Make sure you have one male and two females If you want to have 2 males and 4 females, bump the tank size up to 20 or 25 gallons Or, buy a pregnant platy from the store