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08/23/2019, 10:15 AM | #1 |
Registered Member
Join Date: Mar 2011
Location: Upland, CA
Posts: 101
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Does Higher Ph Cause Low Alk and Cal?
After finally getting my Alkalinity up to 9.5 and my Calcium up to about 450 (with weeks of high doses of 2-part, then backing down), I changed the media in my CO2 scrubber. Ph went from 7.7 up to 8.0 after about 12 hours. Alkalinity dropped to 8.9 over the same time period and calcium dropped slightly. Is there a correlation between Ph and the two?
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08/23/2019, 10:56 AM | #2 |
Registered Member
Join Date: Apr 2012
Posts: 276
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Yes, during high ph coral growth calcification is faster which lead to higher alk and ca consumption. So alk drop.
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08/23/2019, 03:03 PM | #3 |
RC Mod
Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 88,616
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Right, higher pH will encourage growth. That pH level is unlikely to cause any problems, being well within normal parameters, so I suspect that you're just seeing the result of more growth.
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Jonathan Bertoni |
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