PH ??
With every kit I’ve used (a couple of different brands over the years), the number of drops directly corresponds to the dH (degrees of Hardness). If there is another kit that has the drops that do not directly correspond to the dH, then there should be a chart to determine what those drops equate to in dH and ppm.
Lenny Vasbinder Fish Blog - http://GoldLenny.blogspot.com
Category: Philippines Internet Koi Society
