1, the fish belly becomes big: The golden Mary fish's growth way is the egg viviparous. Instead of reproducing by laying eggs, they produce small fish directly. Therefore, near the time of delivery, their abdomen will be significantly enlarged due to pregnancy. And the closer they get to the time of birth, the bigger their bellies become. It looks very obvious. In addition, the belly of some individuals will turn black when they are about to give birth, which is also a very important precursor.
2, do not like to swim: When the fish will be born, the golden Mary fish will stay away from the fish, and often in a daze next to the aquatic plants, will not easily swim. If other fish come near, they will drive them away. When swimming, their posture will appear unnatural, and their swimming speed will be slower.
3, Fallopian tube protrusion or fall: When you are about to give birth to observe their anus, you can see that their fallopian tube has obvious protrusion or fall phenomenon.
The reproductive frequency of the golden Mary fish is relatively high. When the sexual function is fully mature, as long as the environment is suitable, they can reproduce once every 35 days or so. But if the environment is not very suitable, they will reduce the frequency of reproduction. Generally speaking, they can reproduce an average of 6-7 times a year.
