The Planted Tank Forum - View Single Post - pH Rising
Thread: pH Rising
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post #6 of (permalink) Old 10-09-2012, 05:59 AM Thread Starter
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Join Date: Jun 2012
Location: MA
Posts: 1,072
Originally Posted by Diana View Post
Has the water company been changing the water?

Have you been topping off evaporation loss with tap water?

Please test and post:
GH, KH, pH of tap and tank.
Repeat the pH test on tap water that has sat out 24-48 hours.
Massachusetts Water Resources Authority data:

GH: 13 mg/l /17.86 = 0.73 dGH
KH: 41.7 mg/l /17.86 = 2.33 dKH
pH: 9.7


GH: 5 dGH
KH: 3 dKH
pH: 7.6

pH of top-up water to follow
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