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Chemicals Off - PH and KH

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Old 08-15-2008, 08:14 PM   #1
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Chemicals Off - PH and KH

Hope you can help. My KH is 12.5 (steadily going up from 10) and my PH is at 7.7 (measured in afternoon) - down slightly from 7.9. What can I do to get these back in balance?

My Ca is at 480 with a reactor(effulent at PH of 6.4) and I Kalkwasser nighly for my top off. Mag is at 1350.
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125 Acrylic Tank 48x24x24
Approx 35 gal Sump/Refugium
Refugium has 24/7 light with 55watt PC
2x 400w MH 20k lights running 10hrs/day
2x 110w VHO Super Actinics running 12hrs/day
Calcium Reactor
Kalk drip with top-off
Closed loop Sequence Dart Pump 12hrs/day
Mag 7 Circulation pump 24/7
Kent salt
10 gal water change bi-weekly
Temp ranges: 78 - 85
Nitrate/Nitrite/Ammon: 0
PH: 8.1
P04: 0
Ca: 500
dkh: 12
Mag: 1320
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Old 08-16-2008, 01:26 AM   #2
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Re: Chemicals Off - PH and KH

Low pH: Causes and Cures
http://reefkeeping.com/issues/2004-09/rhf/index.htm

Your alkalinity is fine at 12.5 dKH, especially if your calcium is 480 ppm.
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