Why are my cherry shrimp dying?

how did you add them to the tank ??? shrimp should be drip acclimatized before being put in any new tank ... it should take several hours before they are released into the tank ... when i get new shrimp i will float them in the tank they are going into and add a couple tablespoons of tank water to the bag, every hour for the next couple of hours i keep adding more of the tank water a few tablespoons at a time ... i have never lost any shrimp that way ... if your fry tank has minimal hiding places, they could have been stressed out ... a clump of java moss is great for them to hide in :O)