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Old 01-20-2007, 01:10 PM   #1
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dKH to high

my dKH is around 17 ... what is the best way to lower it without stressing the tank ... the ph is 8.3.
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Old 01-20-2007, 02:18 PM   #2
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Hi jjcbone. Welcome to AA. Are you dosing anything? Using tap water? When did you test the dKh? After a water change or before?
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Old 01-20-2007, 03:03 PM   #3
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I always do PWC`s when I want to get things back to normal.
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Old 01-20-2007, 04:27 PM   #4
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I tested every day since this week and it remains 17 dKH ... I did a 20% water change last sunday 6 days ago.
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Old 01-20-2007, 04:50 PM   #5
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What kind of salt and test kit are you using?
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Old 01-20-2007, 04:57 PM   #6
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Instant Ocean and the Salifert test kit.
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Old 01-20-2007, 06:34 PM   #7
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Instant Ocean salt contains approx. 9.8 dKH at 1.25 SG IME. If your using any additives I would stop. Any idea how it got so high?
A few 15-20% PWC's w/ good saltwater should bring it down safely.
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Old 01-20-2007, 10:18 PM   #8
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If you maintain a high calcium level your dKH level will gradually decrease. Maintain your calcium at around 450-460 and your dKH will come down.
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