I'm looking for Kalkwasser. Some nice cheap mrs wages pickilng lime would be great. Does anyone know where to find pickling lime ? otherwise where can I order some (any kalk) from a canadian source at a reasonable price ?
I bought a bag of that years ago.... I seems to have lost its "power"... It does not raise the pH in the tank. My guess is co2 got through the bag.
Can you confirm yours raises pH ?