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API GH/KH Hardness Test Kit | Majestic Aquariums
At home water testing - German brewing and more
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
API GH/KH Test Kit Fresh water
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API GH & KH WATER TEST KIT FISH TANK TROPICAL POND GENERAL CARBONATE HARDNESS 317163010587 | eBay
API® | GH & KH TEST KIT
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API GH & KH Test Kit General & Carbonate Hardness 1 Pack Petbarn