If it is truly an amano shrimp, the eggs actually must hatch out in salt water to survive. You can google it on the internet, but from what I understand you put the mother in another tank, once she lays the eggs you add salt to the water, and then once the baby shrimp start to grow up you slowly acclimate them to freshwater. I'm jealous, I've been keeping an eye on my amano shrimp but none of them have eggs, Good luck!