( I read you can also use qypsum, but there is the danger of shooting the
ph
off the scales........ or should I make one of those plaster of paris
cupcakes?)
ok I re-read it, ,it will push GH off the scales.
now I wonder,, why can't you just add a little plaster of paris dissolved in
water to the pond, in stead of using the cupcake method?
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