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Discussion Starter · #1 ·
Hey guys I have a quick question about flourish nitrogen. When I am doing nitrogen tests should I be testing for K2O which is what I believe it provides (under the guaranteed analysis on the website) or should I be testing for KNO3 which is what I see everyone else testing for. I'm pretty sure the answer is K2O but I would just like to make sure. Thank you
 
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