When the eggs “ripen”,the female state molting. They always molt before mating because at that time new female cuticle is soft and flexible, which fertilization possible. The molting process happens very fast and takes no more than 10-15 seconds.After that, female releases certain chemical substance (pheromone) into the surrounding water. It is the signal for the males that she is ready to mate.The “smell” attract the males and allows them to find the female in the water column.If you notice that some shrimp rush feverishly around the aquarium from corner to corner, this means that one of the females has just molted. That is him responding to the hormones and he will try to find that female and mate with her.The mating occurs rapidly as-about 10 seconds or less. In order to start mating,male and female should face each otter. The male leaves sperm into the genital opening of female Neocaridina shrimp using its appendix masculine.After that, the female starts moving the eggs from the “saddle” to the brood pouch and at that moment the eggs go through the sperm and become fertilized. Therefore,it is certain that any shrimp carrying eggs has mated. A female carrying eggs under her abdomen is said to be “berried”