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tank ph

  1. General Reef Discussion
    Hello everyone, I could use some expertise on my water. I have an issue that i can not wrap my mind around. i tested my water today and have three issues and would love any feedback 1) pH 8.1- not too bad 2) dKH 15.1- Too high 3)calcium 520 ppm- Way too high Any ideas as to what would cause...
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