So I have 4 amano shrimp in my 10 gallon freshwater tank, I just came home from thanksgiving and one of them has a bunch of eggs in her abdomen. I've heard that these fish need brakish/saltwater to breed so I don't quite get how it happened in my tank especially while i hadn't done a water change in about a week. So my question is, if I want any of these to survive will I have to take them out and put them in saltwater or will a couple potentially survive in their current tank?