Wow .. what a difference.
Indeed, I'm curious what your NO3 levels were? I don't think you've truly experience a nitrate nightmare BTW - unless it was over 80ppm, I am claiming the title on that one still
(I am happy to report I finally overcame my NO3 nightmare though - thank you Polyp Labs!!! Although even still, the one tank in particular just pushes NO3 like no tomorrow - all 3 reef tanks on Reef-resh, 2 out of 3 read consistently zero - the 3rd will be anywhere from 0 to 5, not sure why it seems to fluctuate so much. But, I'll take 5 over 80 any day!!)