Planted Tank Enthusiast
Join Date: Oct 2002
Location: Minneapolis, MN
When I test KH I just do 15 drops, shake it (swirl it around like Rex) and then just do one, swirl, one, etc... I know my KH isn't like a roller-coaster ride and it is very rarely lower than 15 dKH, usually around 16-17...
Tank in transition! 55 gallons, hard water.