Hi Zeus, this is a useful table, thanks.
I've been trying to calculate the concentration of nutrients i am currently adding (specifically Mg at the moment) due to issues described here. I am using APFUK starter kit with a reduced dose for a low tech tank.
As part of this i was effectively duplicating your table by working out the ppm of APFUK recommended dose, however, im coming up with different results. The result from the calculator is half what your table suggests. Am i using the calculator incorrectly, or are different assumptions being made between the two?
For example, APFUK dose is 3 times per week of micro/macro (ie 40ml 3 times a week in my 200l tank). From the calculator pic below, this gives 3.63ppm in a week (1.21*3). However, your table is almost exactly twice that, has your table calc assumed dosing 6 times per week perhaps?
Just trying to understand which one is right, or if im not using the calculator correctly.