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RE: Aquatic Plants Digest V4 #303

I have the Dupla one.  Once you become familiar with the relationship
between the colour & the measured pH in the tank I find it a useful
indicator between: "Not enough - Roughly OK - Way too much".


-----Original Message-----

Date: Wed, 24 May 2000 17:04:00 +0800
From: "Jon Hammond" <geohammo at iinet_net.au>
Subject: CO2 indicator inside tank

What does everyone think of the various CO2 level indicators that you can
get that go inside your tank ???

Jon Hammond