9 in 1 Aquarium Test Strips - 100 Strips Aquarium Water Test Kits for Freshwater Saltwater - Testing for Iron, Copper, Nitrite, Nitrate, pH, GH & KH, Chlorine, Total Alkalinity ...

The API® REEF MASTER TEST KIT test 4 key parameters – calcium, carbonate hardness, phosphate, and nitrate – to keep reef inhabitants healthy. Testing is fast, easy, and accurate, yielding precise ...

How accurate is API Master Test Kit? I asked the same question a few weeks back and the general consensus is that the API test kits are just as accurate as any other on the market but they are not as ...