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ph drop from rx
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01/10/2008, 12:09 AM
dadonoflaw
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Join Date: Sep 2005
Location: dc
Posts: 573
well i was doing weekly water changes with IO salt which was real low. i recently switched to RC salt so i am hoping that will help. how much calcium should be gone every seven days? should it stay above 400 if it starts above 400ppm?
dadonoflaw
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