romunov
05/30/2004, 02:22 AM
I just did a search on your forum, and no hits for "ORP", so here I am.
I have been reading an article from Randy Holmes-Farley (http://reefkeeping.com/issues/2003-12/rhf/feature/index.htm);
This is what he says, and I quote:
ORP is also frequently used to evaluate interstitial water in sediments on the bottom of the ocean (often in the range of -200 to -400 mv). I've not measured the ORP down in the sand in my aquarium or refugium, although I have measured pH down deep in the sand, and it is well below the pH of the water column. I have also not seen such ORP measurements for other aquaria, but they could be very interesting. Perhaps such measurements could shed light on the aging of sand beds. Or perhaps on how deep a layer of sand is necessary to drive nitrification as a function of particle size. It might possibly even distinguish different types of sand (e.g., silica vs. aragonite).
Is there any ongoing/concluded studies that you are aware of conserning ORP in DSB?
Have a pleasent Sonntag (that's what my T-Clock says) morning. :)
I have been reading an article from Randy Holmes-Farley (http://reefkeeping.com/issues/2003-12/rhf/feature/index.htm);
This is what he says, and I quote:
ORP is also frequently used to evaluate interstitial water in sediments on the bottom of the ocean (often in the range of -200 to -400 mv). I've not measured the ORP down in the sand in my aquarium or refugium, although I have measured pH down deep in the sand, and it is well below the pH of the water column. I have also not seen such ORP measurements for other aquaria, but they could be very interesting. Perhaps such measurements could shed light on the aging of sand beds. Or perhaps on how deep a layer of sand is necessary to drive nitrification as a function of particle size. It might possibly even distinguish different types of sand (e.g., silica vs. aragonite).
Is there any ongoing/concluded studies that you are aware of conserning ORP in DSB?
Have a pleasent Sonntag (that's what my T-Clock says) morning. :)