The Ecosphere ($250) is a self-sustaining delicate balance of earth, water, air and life (red shrimp, algae and microbes) - all parts of a working self-supporting ecosystem - wrapped up in a beautiful glass sphere for your desk or home. All you need to provide is 6-12 hours of light day. It's a living world right in the palm of your hands, so whatever you do, don't shake it!

• Light - The foundation of life. Fluorescent light or indirect sunlight provides everything your ecosystem needs; there's no feeding or cleaning required.
• Seawater - Provides the backdrop for this educational, self-contained marine environment.
• Red shrimp - Chosen for their nonaggressive tendencies towards one another, these tiny crustaceans live in perfect harmony with their mini environment.
• Algae - Healthy growth sustains and nourishes shrimp by supplying food and oxygen.
• Microbes - To feed the algae.
• Other materials - Gorgonia sprig, gravel, shells and glass provide ample hiding places and smooth surfaces for microbes to attach themselves to and thrive.
• Life expectancy - EcoSphere has an average life expectancy of two years; however, in the right conditions some have lived for up to 10 years!

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