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Old 08/20/2004, 02:09 PM
gregt gregt is offline
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Join Date: Oct 2000
Location: Tampa, FL
Posts: 9,419
Quote:
Originally posted by Randy Holmes-Farley

Are you familiar with the Redfield Ratio?


According to Ron's analysis:

http://www.reefkeeping.com/issues/2002-12/rs/feature/

skimmate is heavy in N relative to P.

It has 420 ppm N and 37 ppm P, or 25:1 moles n to moles P.

skimmer sludge has 4500 ppm N and 250 ppm P, for a mole ratio of 40:1

The Redfield ratio is perhaps debateable a bit, but is more like 16:1 by moles AFAIK.

Does it worry you that you are removing a nonRedfield ratio by skimming?

Why not?
Personally, I'm not convinced Ron knows the proper way to skim to remove P. A wet skimmate is necessary. Not a dry sludge. He has made it very clear to me that he thinks I am full of skimmate in this matter. If, it is in fact his assumption that is wrong then his experiment would be fundamentally flawed as it does not test the proper type of skimmate that is collected by the main BB advocators.
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