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Old 03-19-2010, 06:31 AM   #4 (permalink)
johnzhou2476
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Default Re: Understanding GH & TDS & Hardness

Thanks Diana, that's what I thought too, that my water is consider fairly soft. I remember Tom saying that his TDS was around 300ppm as well and he consider his water to be soft and rich with nutes.

In the past, I kept my water at around 100ppm and my plant did not respond as well. Increasing the TDS to the currrent level seems to make my plant more rich in color and more vibrant.
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