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[APD] Potassium Bicarbonate in the planted aquarium.



Here is an interesting article on the use of KHCO3 and submerged plants.

http://www.publish.csiro.au/nid/102/paper/PP99006.htm

I wonder if KHCO3 could be substituted for the K2SO4 in the PMDD recipe, or
is there a requirement for macro quantities of sulfur? I read the
Sears/Conlin paper again and couldn't find any specific mention of a sulfur
requirement.

Douglas Guynn
        432.368.5411
        d.guynn at sbcglobal.net
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