EcoSphere Closed Aquatic Ecosystem, Small Pod, with Turntable Base, Clear, 5.25" tall, Small Pod with Base

This type of shrimp, Halocaridina rubra, can live for twenty years in captivity. Ecospheres, according to the company that makes them, tend to last two to three years. You're not buying a perfectly balanced ecosystem, you're watching a hardy little crustacean slowly starve to death.

I brought one of the original ecospheres 23 years ago , when it arrived it had four shrimps and the last one only just died at the age of 23, as long as you take care of how much light they receive they will last a long time .