API GH & KH General & Carbonate Hardness Test Kit - Freshwater
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![API KH Test Kit [Fresh or Saltwater Use] | Mail Order Pet Supplies, Inc.](https://www.aquariumsupplies.ca/shop/skus/AP/API-KH-Test-Kit-Detail.jpg "API KH Test Kit [Fresh or Saltwater Use] | Mail Order Pet Supplies, Inc.")
API KH Test Kit [Fresh or Saltwater Use] | Mail Order Pet Supplies, Inc.
API GH/KH Hardness Test Kit (General Hardness & Carbonate Hardness)
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API GH & KH TEST KIT Freshwater Aquarium Water Test Kit : Amazon.ca: Pet Supplies
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How to Test GH and KH - YouTube
I bought the API GH and KH test kit. I didn't get any sort of colour chart to compare it too. KH is left, GH is right. Can someone tell me if
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API Test GH & KH Hardness Kit
API GH & KH TEST KIT Freshwater Aquarium Water Test Kit : Amazon.ca: Pet Supplies
