Sultrysamurai Posted November 16, 2022 Share Posted November 16, 2022 Hello, I am using the API GH and KH test kit with dropper and vials. when testing the GH I get a very faint color ch age after 3 drops. My question is do I go for a complete color change to green for my level or the level is the very faint color change to a hint of greenish? The KH changes rather easily not the GH though. Thanks! Link to comment Share on other sites More sharing options...
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