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API GH & KH Test Kit (General Hardness and Carbonate Hardness) Test kit for freshwater aquarium- Helps create a more natural habitat, ideal for planted aquariums, | Lazada PH
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API GH/KH Hardness Test Kit (General Hardness & Carbonate Hardness)
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Can someone please explain the results, the KH test took 13 drops and the GH test took 19 drops. It's the API test kit and it's not clear how to convert the
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API GH & KH Test Kit - 75 Test
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API GH & KH Test Kit | Freshwater Aquarium Water Test Kits – Aquarium Co-Op
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API GH & KH Test Kit | Freshwater Aquarium Water Test Kits – Aquarium Co-Op
API GH & KH General & Carbonate Hardness Test Kit - Freshwater | Walmart Canada
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API GH/KH Hardness Test Kit (General Hardness & Carbonate Hardness)