blizzardscout2 Posted March 3, 2019 Share Posted March 3, 2019 I tested my phosphates today and the first sample turned blue and the checker flashed 200. I tested again, the sample was clear as usual and it was 0.022 similar to yesterday. I’m using GFO and started a fuge so I’m closely monitoring my phosphates and nitrates. Anybody have this happen? Bad powder additive perhaps? I’m 99% sure it wasn’t contamination as I did nothing different then the second sample. Quote Link to comment
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