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08/17/2007, 04:26 PM
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#1 |
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Registered Member
Join Date: Apr 2007
Location: Uranus
Posts: 3,094
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low ph
woke up today to see my ph meter at 7.56, i said it must be a mistake so i took out my test kit and tested water, the kit said it was at 7.8, why did it go so low, i have always been at 7.9 at night and 8.15 at day, any ideas, could it be CO2, to much calcium??, please help, the tank has been running for more than 4 months
sana
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Senior Member of the "Hardly any Water Changes, Temp Swinging, T5ing, No Qtining, Frag Exchanging for Fish Food Current Tank Info: 90RR inwall, Octopuss Skimmer, 2 MP40 wQD, 1 MP10 WQD, 2 Radions G4 Pro, Apex Doser, Apex Controller, 400w heater, 30 Gal Sump, Biopellets, Carbon, Gfo, Macroalgae |
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08/17/2007, 04:32 PM
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#2 |
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RC Mod
 Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 88,616
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Calcium doesn't affect pH. The issue likely is CO2 problems, or perhaps a bad measurement. I'd try the aeration test in this article:
http://www.reefkeeping.com/issues/2004-09/rhf/index.php
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Jonathan Bertoni |
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08/17/2007, 05:53 PM
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#3 |
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Registered Member
Join Date: Jul 2007
Location: Orange County CA
Posts: 3,819
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What is the alkalinity of the tank?
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08/17/2007, 06:16 PM
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#4 |
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Registered Member
Join Date: Apr 2007
Location: Uranus
Posts: 3,094
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last time i checked it was at 7 dkh, let me chec k it again, will be right back
sana
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Senior Member of the "Hardly any Water Changes, Temp Swinging, T5ing, No Qtining, Frag Exchanging for Fish Food Current Tank Info: 90RR inwall, Octopuss Skimmer, 2 MP40 wQD, 1 MP10 WQD, 2 Radions G4 Pro, Apex Doser, Apex Controller, 400w heater, 30 Gal Sump, Biopellets, Carbon, Gfo, Macroalgae |
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