I grew up about 30 min from Biosphere 2. Been in there a few times, very interesting place. The hype has now worn off, and Clumbia ditched it a few years back. The 700,000 gallon aquarium was ignored. Of the 47 species introduced, 11 have survived the neglect. The Yellow Tang survived in large numbers.

http://azstarnet.com/news/local/educ...59ee92838.html