I agree, shrimp arent the most long lived critters I've discovered. I think I had one for almost 2 years at the most, abd it was only a tiny peppermint shrimp. lol I had a fire shrimp for close to that as well. I had mine from when they were small and they grew during the time I had them. If yours was of any significant size it may have been an older shrimp who couldnt live forever. Not sure if this holds true in the wild, but in home aquaria I don't think they have a long life span such as fish.
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.