Again, not arguing just pointing out that there's often multiple successful ways to run a healthy, thriving reef tank.So based on the Bio-ORACLE database we can find that the highest concentration of Nitrate and Phosphate in Oceans at the maximum depth of each grid is 38.9 ppm and 3.47ppm. (at water surface 32ppm and 2.2ppm)
I then checked the phosphate and Nitrate concentration near Australia and it's obvious that some reef cliffs are living in Phosphate as high as 2.3ppm and Nitrate as high as 32ppm, So the experience of some members with high levels of these may be just right if maintained well.
(Phos 1-2ppm and Nitrate 15ppm seems regular)
Nitrate
Phosphate
Maybe information or assessments like this help education in the forum.
@revhtree What's your valuable opinion?