WillC Posted December 12, 2021 Share Posted December 12, 2021 So I wanted to run this by the collective... If I am reading the instructions correctly for my API kit, GH is supposed to go from Orange to Green and KH is supposed to go from Blue to Yellow. The testing solution in my kit seems off. GH is green/blue and the KH is orange. You can see the color of the liquid in the tip of the solution bottle. Any thoughts? Link to comment Share on other sites More sharing options...
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