1. Behavior changes: guppy will become cautious before giving birth, and sometimes even hide in the corner. They may stay in a relatively quiet place, such as underwater or near a pump, so as not to be disturbed by other fish.

2, physical changes: before the peacock fish gives birth, the abdomen will increase significantly and the color will become darker. Sometimes you can see that there are obvious fetal points in their anus, which are the traces of unborn small fish in the mother.

3, appetite changes: guppy may have a loss of appetite for a while before giving birth. This is because they are preparing for production and need to store energy.