On Mon, 10 Mar 2003 09:51:35 -0500, in rec.aquaria.freshwater.plants
"Henry" verruimde onze geest met:

Thank you for your interest.

Both tests are similar: one takes 5 ml of water and adds drops of the test
solution one drop at a time. When the water in the test tube changes from
blue to yellow, you record the number of drops it took. In the Aquarium
Pharmaceuticals test kit one drop is worth one degree of hardness. In the
Hagen kit one drop is worth 10 ppm.

Both kits are newly purchased within the last month.

how many drops with the hagen and how many with the other for the same
sample ?

Maybe a conversion problem : °KH - ppm

PérRµ§h

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