Amyers22 Posted June 1, 2015 Report Share Posted June 1, 2015 What's the most accurate way to get a GH reading. I've been using test strips, but I know they can be inaccurate and I don't know how to convert ppm of the test strip to a reading such as a GH of 4. Is there such thing as a GH pen like a TDS and pH pen? I know there is a API master test kit, but if there is something I can purchase that reads only for GH and is accurate I would rather use that. Thanks in advance Edwardnah 1 Quote Link to comment Share on other sites More sharing options...
Shrimpo Posted June 1, 2015 Report Share Posted June 1, 2015 There is API kit that test only GH and KH. couldn't find it at the local fish store so I had to get it online. Soothing Shrimp and Amyers22 2 Quote Link to comment Share on other sites More sharing options...
JamesHe Posted June 1, 2015 Report Share Posted June 1, 2015 API test kit is good enough. You can double the water volume to get the 0.5 reading. Amyers22 1 Quote Link to comment Share on other sites More sharing options...
DETAquarium Posted June 1, 2015 Report Share Posted June 1, 2015 I often thought the same way, they make PH, Temperature, TDS Pens, why not a GH/KH Pen. I still use the API Test Kit, works well. Soothing Shrimp and Amyers22 2 Quote Link to comment Share on other sites More sharing options...
Chiumanfu Posted June 1, 2015 Report Share Posted June 1, 2015 API test kit is good enough. You can double the water volume to get the 0.5 reading. I do this as well. I use a syringe to get 10mL in a 20mm fat test tube. No need to cap and shake... just a swirl. Divide the result by 2. Much better than using those API tubes that never seal properly and stain my skin with the KH indicator. Amyers22 1 Quote Link to comment Share on other sites More sharing options...
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