On Mon, 10 Mar 2003 19:55:31 -0500, in rec.aquaria.freshwater.plants
"Henry" verruimde onze geest met:

Hagen: 6 drops (so 60 ppm KH), Aquarium Pharmaceuticals: 5 drops (so 5
degrees hardness =89.5 ppm KH).

Henry

something is wrong here or misleading.

The hagen give 1 drop for 10 ppm (or mg/L) but you don't say of what
those 10 mg/L or. I suppose they are in CaO. Which is actually a
measurement for GH.

The AP gives 1 drop for 17.9 ppm (or mg/L). Which could be 17.9 mg
CaCO3.

I don't have much time (got to go to work)
Read the manuals of both exactly
Search google for "german hardness" an look up the
difference/similarity between 10 mg CaO and 17.9 mg CaCO3

will be back
PérRµ§h

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