It is necessary to distinguish whether they are river shrimp or sea shrimp. Sea shrimp cannot survive naturally in fresh water. Additionally, these objects require a large amount of oxygen, so the tank in which they are raised must either have shallow water and a wide surface area (like a sink), or add oxygen supply equipment such than an air pump.
As for eating, these guys are not afraid of meat and vegetables, and don't care about life or death. They can even eat rotten things (like crabs, they're down there). organisms). I like fish the most. But don't overfeed, these guys are too greedy and will starve to death.