Weird Aquariums – The Self Sustaining Ecosphere
In the Self Sustaining Ecosphere, a self-contained, self-supporting ecological system is permanently sealed within the hand-blown borsilica glass sphere. Its careful balance of air, water, plant and animal life was developed as the result of years of NASA research into self-sustaining, bio-regenerative systems where the equilibrium must be maintained for long periods of time, such as long-term space stations. Inside, tiny shrimp feed on bacteria that metabolize organic waste into nutrients for the algae which, in turn, photosynthesize the oxygen needed for the shrimp and bacteria to survive. The life span of the shrimp is up to three years and that of the algae and bacteria is indefinite.
Eerie – wonder what would happen if the plant dies.

So is this what you were talking about? The case of the missing shrimp?
how awesome!! love it
Blub?