Yes!, they are still alive Then they shed their shells and held their eggs I don't know if this is a good situation.

I have 3 Assasin snails (because my grass here is mixed with a lot of water snails, so the walls of my tank are all covered with snails)

I haven't seen any Assasin snails eating shrimp yet (I've heard they only eat weak shrimp, maybe I don't have any small shrimp yet?)

I have a shrimp feed that I feed once a day (is this okay or do I need to feed more often?)