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Discussion Starter · #4 ·
The reason why I ask is I have a test kit from hagen that I bought about a year ago that I believe was inaccurate from day 1. The PH is way off, as I took a sample to work and tested it with our lab PH tester, and it gave me a different reading.
I am looking for reasonably priced test kits for nitrogen, PH, Gh, KH, etc
 
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