okay, I had bought some yellow shrimp a while back. I had a two females in the tank they produced offspring and both died while berried their second time arround. I would say that I have arround fifty shrimp but it has been about three months and I have yet to see any berried females. Is it possible that all 50 are females? The water parameters are all correct. PH 7, TDS 200, temp 75, 1-2 Nitrites, well planted and water change once a week. They are all well colored so I am not sure if they are all female or not. I am debating if I should buy some more to see if I can pick up a few males and be certin that there is both sexes in the tank.