I bought 2 of these a month and a half ago. One turned up dead a day or so after i got them, the other is still alive and well. Only thing is it hides and is never out. He hides inside the rocks I have for my pleco.
Bamboo shrimp must be acclimated in a separate container of store/tank water very gradually over several hours, which might be why you lost one. They are very sensitive even during your weekly water changes.
The survivor is probably a male, as the females are much more day active. Whenever sexing is possible, no matter what species, I find it's best to get female shrimp if you want them to be more day active.