Water test kits - The Planted Tank Forum
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post #1 of 3 (permalink) Old 06-10-2009, 01:13 AM Thread Starter
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Water test kits

I use the API FW Kit, and since I have planted tanks and use compressed CO2, I started using the Hagen GH/KH Test. While picking this up, the LFS attendant mentioned that the API test has been reputed to be innacurate. Anyone heard this, or have any other tests they use?
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post #2 of 3 (permalink) Old 06-10-2009, 01:42 AM
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The API GH test kit has been disappointing for me. The first one I bought I thought worked well, but I had no idea if it was accurate. After a year or so, it ceased to work. The second one I bought didn't work at all. But, the KH test kit seems to work well and consistently, but still with unknown accuracy. That is to be expected - no hobby test kit can be assumed to be accurate, and no test kit costing whatever it costs can be guaranteed to be accurate without calibrating it yourself.

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post #3 of 3 (permalink) Old 06-10-2009, 06:07 AM
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none of it is absolutely accurate. But I don't have a problem with API.

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