1. Slow action: When guppy approaches parturition, its abdomen will become larger and square. When their abdomen becomes larger, their movements will be affected and become slower. Some guppies will hide in the corner of the fish tank and keep away other fish.

2, fetal spots turn black: guppies will appear fetal spots after pregnancy, and the color of their fetal spots will get darker and darker near production, and finally turn black or dark brown.

3. Genital protrusion: When guppies are near production, their genitals will become more prominent and look very obvious, so the breeder can observe them carefully.

1. Stable environment: If breeders want guppy to produce stably, they must ensure stable water temperature and water quality. Especially the water temperature, don't fluctuate too much, which can reduce their discomfort. Although they pollute the water quality when they are produced, breeders should try not to change the water to avoid changes in water quality.

2. Quiet environment: When guppy is produced, breeders need to keep the surrounding environment quiet. They are usually less daring, and they are sensitive when they give birth. If there is too much noise around them, they will be easily frightened. When giving birth, if guppy is frightened, it is likely to cause dystocia.