I have 2 groups of shrimp ghost and cherry shrimps. I notice "Only" cherry shrimps are dying. Well it's not a big number 1 died yesterday today another one is lying on the gravel. I didn't do any water change yet because the ghost shrimp that was berried has laid her eggs somewhere, and in the tank there are some tiny cherry shrimp that I barely can see. I am afraid water change is going to be a problem. I have one huge java moss, and one moss ball, running with fluval co2 20, and aeration is fine. 0 ammonia~!