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#1
09-23-2015, 08:08 PM
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Ha; the alk is now sitting at 7.9. Ca at 425. Mg at 1410. I stopped dosing Alk for less than 48 hours, but left the Ca doser on its normal schedule (dosing for 9.5 min every hour, 20 times a day). So, in less than 48 hours, my corals burned through nearly 3 dKH units of Alk.
Do plants have anything to do with Alk consumption? I have a 55 gallon refugium that growns cheato and caulerpa like a champ! Because I like my fish fat and happy! Let's hope the SPS don't suffer from the spike... Last edited by straightrazorguy; 09-23-2015 at 08:21 PM. 
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#2
07-14-2016, 04:35 AM
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Bumping an old thread here, but it seems to be the place to discuss...
My alkalinity measures 22 dKH, confirmed on two different branded tests, on a freshly mixed pail of Instant Ocean from RO water at 24 C. I bought some snails from a marine pet store and but their water to the same tests, which came out to 28 dKH. Both of my aquariums seem to run at ~20-22 by these tests and all inhabitants seem to be happy. What is going on here? Is it as simple as dividing by 2  ?
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#3
07-14-2016, 05:39 AM
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Quote:
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#4
07-14-2016, 05:43 AM
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An API and a Hagen. Both are new.
The API test strip shows ~180 ppm "ISH". So ~10 dKH.
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#5
07-14-2016, 07:12 AM
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Quote:
Both of those brands are notoriously unreliable
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