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Old 24-05-2007, 05:15 PM   #18
el993
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Very interesting thread.
May I ask how to increase gH to about 4dH if our tap water is only 1dH while maintain tank water pH unchanged @6.7?

Tank pH=6.7, dH=2 (TDS 110), kH=4
Tap water pH=7.8, dH=1, kH=2
What will happen doing 50% WC?

If adding limestones TDS of my tank water increased from 110 to 118 within an hour and I noticed kH also being pulled up.

Thank you.
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