The Planted Tank Forum - View Single Post - Gh keeps dropping
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post #1 of (permalink) Old 11-11-2012, 03:20 PM Thread Starter
Algae Grower
Join Date: Mar 2009
Location: Toronto, Canada
Posts: 79
Gh keeps dropping

when I got a new Gh kit and tested my tank it was Gh 0. I slowly raised it to Gh 4. I left the tank alone for a week and retested and it's back to Gh 0. What can cause the Gh to drop like that in a week?
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