You need to quarantine the female which carrying with eggs with some mosses. Once the female released the eggs. The larvae will survive in fresh water for 2 days. So, you need to change the fresh water to salt water from 0ppm up to 35-40ppm.within these 2 days. You can increase it by hour and hour.

You can feed daphia or green water to the larvae. Once the larvae grow to as in baby shrimp shape. (Take around 30-40 days.) Then you need to add in the fresh water slowly...