I want one of these SO BAD! EcoSphere - inside these sealed glass balls live shrimp, algae, and bacteria, all swimming around in filtered seawater. Put it somewhere with some light and they will self-sustain for years, no feeding or cleaning necessary.
EcoSphere is a self-sustaining ecosystem, you never have to feed the life within. Simply provide your EcoSphere with a sourc of indirect natural or artificial light and enjoy this aesthetic blend of art and science, beauty and balance.