Testing kh & gh

[reefdiver]

If you where using your ammo card to test kh & gh . Would you say kh would be at 0 or under gh at 2 . I'm trying to get a better reference as to what color am I looking for.

 

[Rare]

Im a bit confused at the question. The GH/KH changes from one color to another color after x amount of drops is reached. After the color has change you use the number of drops that it took to change the color and look up your dKH or the ppm value.

 

[reefdiver]

I'm just wanting a certain color as a goal. For example my kh will turn a light yellow after 2 drops. Less yellow than the ammonia card.

 

[Fishfur]

The test does not work like an ammonia test. Once the colour changes, the test is done. What colour you get is irrelevant, only that it changed.