Platies mate via spawning. It is a process in which male platy fish releases the gametes (sperm) into the water close to the female platy fish. The gametes are directed towards the female fins via pointed male anal fin. ... After conceiving, a single platy fish can give birth to up to 20 or even 40 fry at a time!
How do platys breed?
Breeding the red wagtail platy is more than easy—it's not a question of if but when. Females can warehouse sperm for up to six months; they are almost always pregnant with fertilized eggs and can give live birth to 10 to 40 fry every 4 to 6 weeks. Huge broods of up to 80 fry are even possible.
Do platys breed easily?
Platy fish are relatively easy to breed, and they don't require a lot of encouragement. As long as you introduced both male and female platy fish to the tank, they should start breeding in a short amount of time. If your platy fish don't seem to be breeding, make sure you have both male and female fish in the tank.