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Path: utzoo!linus!philabs!cmcl2!harvard!sasaki
From: sasaki@harvard.ARPA (Marty Sasaki)
Newsgroups: net.pets
Subject: aquarium aeration
Message-ID: <455@harvard.ARPA>
Date: Sat, 26-Oct-85 19:05:21 EST
Article-I.D.: harvard.455
Posted: Sat Oct 26 19:05:21 1985
Date-Received: Thu, 31-Oct-85 06:29:36 EST
Distribution: net
Organization: Harvard Science Center
Lines: 15

The common myth that bubbling air into an aquarium adds oxygen to the
water is not true. Almost no gas exchange happens with bubbles. All of
the gas exchange happens on the surface of the water. This is why
tanks with lots of surface area are "better" for your fish. You can
encourage the gas exchange by agitating the surface of the water.

Actually, bubbling air will help with the oxygen exchange because it
will cause the water in the tank to move around more (sort of like
having a little pump.
-- 
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  Marty Sasaki				net:   sasaki@harvard.{arpa,uucp}
  Havard University Science Center	phone: 617-495-1270
  One Oxford Street
  Cambridge, MA 02138