Black Mary, a feng shui fish just bought a few days ago, gave birth to a small fish today. How should I take care of it?

It is good to live in water with a water temperature of 22-28 degrees Celsius, and it is very sensitive to the change of water temperature. I don't like changing all the water at once, so I should always change some water. It is an omnivorous fish. In the daily feeding, live animal bait (live food) such as Daphnia, Chironomid larvae, and some fresh spinach leaves or lettuce leaves are fed, and they like to eat aquatic plants and moss on the pond wall. Take protective measures for larvae to prevent them from being swallowed by parent fish.