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#11
02-22-2008, 05:13 PM
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Thanks, Untamed. The article you posted explains why most additives increase PH while baking soda lowers it. I was using the calculator at http://home.comcast.net/~jdieck1/chemcalc.html to find a product to increase alkalinity for my tank based on the effect on PH and where my PH is.
This whole post started because, without knowing my PH, I wasn't sure whether to use baking soda or a comercial product to increase alkalinity (or maybe both?) 
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#12
02-22-2008, 05:18 PM
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...and I sometimes find it difficult to figure out what the commercial products actually ARE. They are often mixes of many chems so their affect on pH is hard to predict.
I've gone to sodium bicarbonate when I need to dose.
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400 gal reef. Established April, 2007. 3 Sequence Dart, RM12-4 skimmer, 2 x OM4Ways, Yellow Tang, Maroon Clown (pair), Blonde Naso Tang, Vlamingi Tang, Foxface Rabbit, Unicorn Tang, 2 Pakistani Butterflies and a few coral gobies My Tank: http://www.canreef.com/vbulletin/showthread.php?t=28436
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#13
02-22-2008, 06:04 PM
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Here was a table from the calculator I was using showing the effect on PH of various Alkalinity increasing products:
Product........................................... ................Effect on PH Baking soda.............................................. .......Somewhat lower Soduim Carbonate Anhyd. (Baked B. Soda)........... Substantially Higher! Kent's Tech CB Part B Alkalinity...........................Higher Warner Marine CalxMax Part B Alkalinity................ Moderate Increase Randy's Recipe 1 Alkalinity Part............................Substantially Higher! Randy's Recipe 2 Alkalinity Part............................Somewhat lower Limewater (saturated).......................................Substantially Higher! Aq Systems Reef Evo SeaBuffer.......................... Substantially Higher! Two Little Fisher C-Balance Part B........................Higher ESV B-Ionic Original Ca Buff Pt 1..........................Substantially Higher! ESV B-Ionic Bicarbonate Syst Pt 1........................Somewhat lower Oceans Blend Part 2 of 2 Part Supplement..............Somewhat higher Seachem Reef Buffer (dry)...................................Substantially Higher! Seachem Reef Builder (dry)................................. Substantially Higher! Seachem Reef Carbonate (liq)............................. Substantially Higher! Tropic Marin Bio-Calcium Powder (Also Calcium)...... Minimal Salifert All in One (Also Calcium)...........................Minimal Salifert KH + PH Buffer (dry)............................... Higher
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