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#1
10-07-2015, 01:57 AM
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Sodium carbonate is also more concentrated because it isn't "hydrated" like bicarbonate. If you want to get real crazy you can dose carbonate at night and bicarbonate at day.
 Last edited by Myka; 10-07-2015 at 02:00 AM. 
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#2
10-09-2015, 05:01 PM
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I did a couple of pH tests and results were pretty well as expected. In the afternoon, after lights have been on and bright for quite a while, the pH was 8.2. In the morning, before the lights have ramped up, the pH was 7.8. So it is within range, but not totally consistent. I guess the C02 buildup overnight is what drops it.
My test kit (API) is pretty old too, so results may not be totally accurate, although seemed to be what I expected. Not sure what the results would be with the carbonate (vs the bicarb that I use now). I don't recall what my tests were (long time ago) when I was using sodium carbonate so have nothing to compare to. Now the question is, should I switch to carbonate for my alk dosing?
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Reef Pilot's Undersea Oasis: http://www.canreef.com/vbulletin/sho...d.php?t=102101 Frags FS: http://www.canreef.com/vbulletin/sho...d.php?t=115022 Solutions are easy. The real difficulty lies in discovering the problem.
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#3
10-09-2015, 06:37 PM
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I have some sodium bicarbonate bulk 2-3lbs if anyone needs some.
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Hey! I never "LEFT" the hobby, just doing fresh water now. Which is still listed as part of Canreef if I'm not mistaken. 
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#4
10-13-2015, 09:02 PM
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Sodium Carbonate (Soda Ash) will significantly raise your PH for a short time after its's added and is more commonly used to 'maintain' alk/PH levels than Bicarbonate. Sodium Bicarbonate doesn't have such an impact on PH and is better for larger adjustments to your alk, which can be handy when setting up a new tank, QT etc. I'd go with the Soda Ash for daily dosing personally, however you may find the Bicarbonate goes a little further as it takes less to mix a gallon of solution. http://www.bigreefdepot.com/Bulk-Additives-s/149.htm
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