Plantex mixed with DTPA and Fe Gluconate: 4:1:1
Note, most all basic fert routines add the same things, they just add them at different amounts, so adding more of one, is the same as adding another. DIY fert dosing came from PMDD back in 1994/5, so all can be traced to that routine.
EI is basically 90% PMDD but tosses the test kit part out, no one ever does it anyway, even if you nag nag nag. Ups the water changes and makes ferts independent. If you want optimize the dosing, then you slowly taper off till you note any change in the growth(called the critical point) IF......the tank is doing very well...........if the tank is not doing well to start with, well.......then it cannot be independent, you have other issues unrelated to ferts.
By tapering off and observing, you can then reduce the % water changes, or not. It's up you there. I garden heavily in some tanks, so I do more Water changes, others, not much at all, so I do few in those(2x a week vs 1x a month).
A pretty wide range.