Dolomite as a buffer

dgh5 · 01/12/2010, 04:14 PM

Hi,
I was wondering if dolomite acts as a buffer in the same way that aragonite does. If so, can anyone tell me what pH it buffers to. I think i remember hearing that aragonite buffers to 8.3, can anyone tell me a similar number for dolomite? Is it suitable for reef use?

Randy Holmes-Farley · 01/12/2010, 04:44 PM

Neither is a useful buffer for reef aquaria. Aragonite does not dissolve unless the pH drops well into the 7's.

01/12/2010, 04:14 PM	#1
dgh5 Registered Member Join Date: Nov 2009 Location: Miami, FL Posts: 19	Dolomite as a buffer Hi, I was wondering if dolomite acts as a buffer in the same way that aragonite does. If so, can anyone tell me what pH it buffers to. I think i remember hearing that aragonite buffers to 8.3, can anyone tell me a similar number for dolomite? Is it suitable for reef use?

01/12/2010, 04:44 PM	#2
Randy Holmes-Farley Reef Chemist Join Date: Apr 2001 Location: Arlington, Massachusetts Posts: 86,233	Neither is a useful buffer for reef aquaria. Aragonite does not dissolve unless the pH drops well into the 7's. __________________ Randy Holmes-Farley Current Tank Info: 120 mixed reef