Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!hoptoad!amdcad!decwrl!ucbvax!sdcsvax!ucsdhub!hp-sdd!hplabs!sdcrdcf!trwrb!trwind.TRW.COM!nrcvax!nrc-ut!andre From: andre@nrc-ut.UUCP Newsgroups: alt.aquaria Subject: Re: Fishtank Moved Message-ID: <356@nrc-ut.UUCP> Date: Tue, 1-Dec-87 20:21:48 EST Article-I.D.: nrc-ut.356 Posted: Tue Dec 1 20:21:48 1987 Date-Received: Sun, 13-Dec-87 16:54:06 EST References: <1753@mit-amt.MEDIA.MIT.EDU> <1859@cognos.UUCP> Reply-To: andre@nrc-ut.UUCP (Andre' Hut) Organization: Network Research Corp. Salt Lake City, UT Lines: 35 In article <1859@cognos.UUCP> halo@sirius.UUCP (Hal) writes: >In article <1753@mit-amt.MEDIA.MIT.EDU> bc@mit-amt.UUCP writes: >> >>I read up on aquaria, and got the impression that it would be a >>challenge to maintain one. All this stuff about pH, ammonia, >>temperature, etc. >> >Of course, a really healthy aquarium can almost look after itself... In fact, a Japanese company now sells a sealed aquarium (complete with plants and fish). All you have to do is add light. Supposed to last years... >The number of fish which can be safely kept in a "community" style >tank is generally a function of the average length of the fish kept and >the surface area of the tank. In general, aeration does not CAUSE >oxygen to dissolve. The majority of gas exhange occurs at the surface. >Aeration DOES promote this air exchange by causing circulation (and the >ripples do marginally increase surface area). It has been shown that you can even aerate with CO2. It's the motion, not the bubbles. -- ----------------------------------------------------------------------------- sdcsvax-\ ihnp4-\ \ \ Andre' Hut sdcrdcf!psivax!nrcvax!nrc-ut!andre / / / hplabs--/ ucbvax!calma-/ / utah-gr!uplherc/ Network Research Corporation 923 Executive Park Dr. Suite C Salt Lake City, Utah 84117 -----------------------------------------------------------------------------