pmdd- sequence of adding components.

Hej. I live in Poland and i cannot buy miXture of chelated components like
in the Krib page !
I make pmdd similary to this but a must adding all components separately.
I adding.
500ml water
chelat zn 12% - 0,35g
chelat fe8% - 9,23g
chelat mn 12% - 1,57g
chelat cu 12% - 0,09g
molibdenit (the source of mn) - 0,09ml
h3bo3 - 1g
kno3 - one spoon
mgso4 - one spoon
k2so4 - two spoons

My parametrs
no3 - 0
ph - 7
kh - 10
gh - 16
co2 - 40
fe - 0,3

In my aquarium grow vary well plants and long green alge.I have hard water
and to reach 0,3 ppm of fe i must dosage 15 ml of my own fertilizer like up.
and no3 is to low .I added no3 to reach 10 ppm and long green alge still
alive and grow.
What i make wrong ????

That the sequence of adding components is important.???????????
my tanks here
http://www.republika.pl/andkoni/akwarium2.JPG
http://www.republika.pl/andkoni/akwarium4.JPG
and one more problem
the leafs of ammania and rotala macranda are loXic.
oh and all plants grow up wery well but limnophilia aquatika and cabomba
aquatika non stop become yellow in down to up.
I have read that is to low K but i add wery much K2so4 DO you think so ?
Help