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Old 01/08/2008, 01:05 PM
tmz tmz is offline
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Join Date: Apr 2006
Location: West Seneca NY
Posts: 1,935
FYI, the term is benthic zone and it refers to the bottom of the tank or rock surface ,basically the zone for surface dwellers. If you are trying to describe a twilight or dark environment then the term is cryptic zone.