1. The mother fish likes to stay in a hidden corner.

2. The mother fish's belly swells greatly, and there are patches above the anus where the belly is bright (also called fetal spots, the darker the color, the closer it is to labor), and the fetal spots in Bai Zi change from light yellow to orange or orange. Sometimes you can see the eyes of small fish from the tire spots.

3. The anus will protrude before labor.

Based on the above points, it can be judged whether guppy is in labor.