This tank as since been torn down, and replaced with another tank. I did learn a ton about cherry shrimp though. I now have them in 3 different tanks.
I'm pretty sure it's impossible to starve cherry shrimp to death. I have 3 in a 25 gallon tank with no filter, and they have the deepest red color out of all of my shrimp. They're lucky to be fed once a month. Tank is also unheated. Inside my house
I have 3 in a 9 gallon with 5 mollies that are breeding. The mollies harass the shrimp quite often. however i now have shrimp babies in the tank with them and their babies...
I am also keeping them with a breeding pair of albino bristlenose. This population was up to around 100 or so. Then devoured by a dwarf crayfish the self cloning type. Now only a few remain in this tank.
They seem to be super hardy. Like a guppy. I had a customer come in last week with 3ppm ammonia, and still all her cherry shrimp lived that we had sold her before. I had always heard that these shrimp were sensitive. But from what I can tell. they'll live through anything, as long as they arn't physically eaten.
I'm actually planning to redo my desk tank again. As I miss having infinite cherry shrimp. Most likely going to be shrimps, and hetamorphsa? the dwarf livebearer.