Aquarium inside of the Biosphere 2

Biosphere 2 :

The basement area of Biosphere 2, known as the Technosphere, covers nearly 3.14 acrea. It is where all the electrical, plumbing, and mechanical systems are houses. There are 26 air handlers (AH) located in the technosphere. Of these, 14 are large units that can heat and cool the air, remove particles from the air, maintain humidity levels and generate condensate water (for rain, fog and resupplying the ocean). The 12 smaller AHs can cool the air and generate condensate water.  To make condensate water or create dehumidification, the air temperature is lowered below the dew point and this cooled air is blown across the chilled or tower water AH coils. Cooling the air causes condensation to form on the coils, which is collected in drip pans located on the floor adjacent to the handlers.