One of the science teachers back home had a sealed self-sustaining ecosystem.
Edit: It's algae, shrimp, and other microorganisms.
We have a . . . really big aquarium in our living room. I don't know the size in gallons, but its A LOT. The fish are Grace's thing, but I do know that there are like 25 or 30 in there.
Gilda
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Last edited by Gilda; 09-05-2006 at 09:12 PM..
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