What should I do when my mickey mouse platy pregnant?

When you find out the fish is pregnant, the first step is to separate the mother from her community in the aquarium. After the mother shows signs of pregnancy, wait for the new fry to adjust for 24 to 30 days. Then, the mother gives birth, and the average number of new fry reaches 40.

The first step is to move the female to another aquarium to give birth to the fry. Once the fry are out, move the parents so they don't eat them.