No, indeed 22ppm NO3 won't do that, even 35ppm won't, but I thought I would caution about 35ppm because the last thing one needs now is to start noticing the SPS letting go (35ppm is way too high for SPS, IMHO). 21ppm is definitely a lot better than 35ppm though, I would not bother with the test kits if you're using the monitor. Just have plenty of calibration fluid on hand, I find if I get unexpected readings (or readings that don't make sense), I guess over time that stuff just contaminates to slightly different nitrate levels, so I switch to a new batch of calibration (I use refill the little bottles with the big ones) and it seems to normalize.
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-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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