What type of nutrients don’t really matter. Plants require certain nutrients to survive. These studies were done in the 1930’s Hoagland & Arnon. With the source being irrelevant, Premixes mix their nutrient lines based on this formula.
With that said, most nutrient companies like AN suggest overfeeding for a norm. This leads to you buying more, more frequently. It’s business 101. The more you use, the more you buy.
I don’t know what’s in ILGM’s nutrient mix, and have never used it.
PPM’s are not universal. Some mixes have higher amounts of compounds then others, but should still fall within the averages of Hoaglands Solution for larger fruiting plants.
N 210 ppm
K 235 ppm
Ca 200 ppm
P 31 ppm
S 64 ppm
Mg 48 ppm
B 0.5 ppm
Fe 1 to 5 ppm
Mn 0.5 ppm
Zn 0.05 ppm
Cu 0.02 ppm
Mo 0.01 ppm
Notice silica is missing…
I use my own mix that’s very close to this.