The Planted Tank Forum - View Single Post - Gh test issue
Thread: Gh test issue
View Single Post
post #2 of (permalink) Old 08-01-2013, 02:21 PM
Darkblade48's Avatar
Join Date: Jan 2008
Location: Toronto/Singapore
Posts: 10,719
As GH and KH test kits work on the principle of titration, you can double the volume of water to be tested, and just keep adding drops until you see a colour change.

The result is that each drop resolves to a finer degree (i.e. each drop is now 0.5 degrees hardness, rather than a single point). Doubling the volume again would result in a resolution of 0.25 degrees, etc.


A Primer to Pressurized CO2 and A Primer to Planted Tanks
Eheim Pimp #362 - Eheim 2213 x2, Eheim 2028, Eheim 2217, Eheim surface skimmer and Eheim autofeeder.
Victor Pimp #33 - HPT272-125-350-4M
Darkblade48 is offline  
For the best viewing experience please update your browser to Google Chrome