Path: utzoo!hoptoad!ihnp4!inuxc!iuvax!rutgers!psuvax1!burdvax!sdcrdcf!trwrb!trwind.TRW.COM!nrcvax!nrc-ut!andre
From: andre@nrc-ut.UUCP (Andre' Hut)
Newsgroups: alt.aquaria
Subject: Re: question about biological filtration
Message-ID: <373@nrc-ut.UUCP>
Date: 22 Dec 87 19:48:16 GMT
References: <193@bacchus.DEC.COM>
Reply-To: andre@nrc-ut.UUCP (Andre' Hut)
Organization: Network Research Corp.  Salt Lake City, UT
Lines: 32

In article <193@bacchus.DEC.COM> reid@decwrl.UUCP (Brian Reid) writes:
>I've been doing more reading about marine aquariums, in some recent FAMA
>issues and a few books. I get the clear picture that the consensus of modern
>...
>writers claim that the fish-holding capacity of your aquarium is limited by
>the size of the gravel bed.
>I am puzzled why it is not possible to set up outboard gravel filters.

Indeed it is possible.  The latest thing from the salt water world is a system
called the "minireef".  Part of that system is an exterior biological filter
system.

>It
>seems to me that as long as the water flows through bacteria colonies in the
>gravel, it shouldn't matter whether the gravel is at the bottom of the tank
>or off in another room. Why couldn't you have a circulating pump that drew
>water out of the marine tank, pumped it through a large bank of gravel beds
>that was kept nearby, and then pumped it back into the aquarium?

Great idea, nothing wrong with it.
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