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tmz · 08/25/2010, 11:04 AM

Originally Posted by tmz View Post

So, on the one hand higher ph(less H+ in the water) makes it easier for them to squeeze out a positively charged proton when there are less positively charged H+ protons in the water. thus it would seem higher ph might make precipitation and skeletal growth easier. However ,recent discussions suggest higher proportions of HCO3 vs CO3 which occur at lower ph ranges may be more beneficial overall. A shortage of HCO3 vis a vis CO3 might actually slow growth even though more CO3 results in higher ph and alkalinity( CO3, carbonate can neutaralize 2 H protons before becoming carbonic acid H2CO3 while bicarbonate, HCO3 has room for just 1).

Mind if I ask you flat out where I can find these discussions you are refering to?Don't mean to be so blunt but I just read a 15pg thread didn't really see much.-Graves

I found it.One search of the chemistry forum on carbonate bicarbonate ratios. I'm sure there is more.
Here it is:

http://www.reefcentral.com/forums/sh...rbonate+ratios

08/25/2010, 11:04 AM	#30
tmz ReefKeeping Mag staff Join Date: Apr 2006 Location: West Seneca NY Posts: 27,691	Originally Posted by tmz View Post So, on the one hand higher ph(less H+ in the water) makes it easier for them to squeeze out a positively charged proton when there are less positively charged H+ protons in the water. thus it would seem higher ph might make precipitation and skeletal growth easier. However ,recent discussions suggest higher proportions of HCO3 vs CO3 which occur at lower ph ranges may be more beneficial overall. A shortage of HCO3 vis a vis CO3 might actually slow growth even though more CO3 results in higher ph and alkalinity( CO3, carbonate can neutaralize 2 H protons before becoming carbonic acid H2CO3 while bicarbonate, HCO3 has room for just 1). Mind if I ask you flat out where I can find these discussions you are refering to?Don't mean to be so blunt but I just read a 15pg thread didn't really see much.-Graves I found it.One search of the chemistry forum on carbonate bicarbonate ratios. I'm sure there is more. Here it is: http://www.reefcentral.com/forums/sh...rbonate+ratios __________________ Tom Current Tank Info: Tank of the Month , November 2011 : 600gal integrated system: 3 display tanks (120 g, 90g, 89g),several frag/grow out tanks, macroalgae refugia, cryptic zones. 40+ fish, seahorses, sps,lps,leathers, zoanthidae and non photosynthetic corals.