Yet another EI dosing Q!

Just trying to get my head around ppm using the Fertilator....

Have I got this right:

If I dose according to the suggestion in Tom's article for a 20G high light tank, this is:


1/4 teaspoon of KNO3 3-4x a week (every other day) equates to 10ppm NITRATE, 6.6ppm POTASSIUM per dose

and:

1/16th-1/32nd teaspoon of KH2PO4 3-4x a week (every other day)

Say I use 1/32nd amount then this equates to 1.6ppm PHOSPHATE, .66ppm POTASSIUM per dose.

Do I just add up the amounts to get the total ppm per dose? and is that enough potassium?

If I use Seachem Equilibrium how do I calculate how much Ca, Mg, and K I am adding? On the bottle it gives concentrations as percentages e.g. Ca 8.06%.

I know I might not need to know how much in the Equilibrium if I put enough in, but I'm nosy! I like knowing these things

Thanks for any help,

maggie