The Method....
When I came back to the hobby 3 years ago I start with the PMDD method. After one year of mix result (maybe not because the method itself but I try to learn all the new concept and put some of them in application...)
Anyway, start to dose more heavily for a year with other mixed results.
Now I’m using the method that seem to work for me.
For Iron and trace, I’m using the PMDD mix with some changes.
For 150 ml Water:
The mix: Fe and traces + other nutrients
Fe/Traces= 1.5 teasp (same as PMDD)
K2SO4 = 1 teasp (same as PMDD) (dosed by itself as needed)
KNO3 —> Out of the mix (dosed by itself as needed)
MgSO4= 1 teasp around 1/4 of the PMDD original mix (dosed by itself as needed)
I dosed my 33 gal with this around 1ml everyday (give me around .4 mg/l Fe)
CaCO3, Phophate, Potassium, Nitrate and magnesium are dosed by themself as well, when needed.
I’m trying to dose small amount of Boron.
Seem to work for me, Better result than my 2 first try, still place for improvment.
My actual parameters
Ph=6.9 (upping CO2)
kh=20 mg/l
gh=180 mg/l (to high, want 120)
Ca=40 mg/l (to high, want 20)
Mg= 19.5 mg/l (to high, want 10)
NO3= 3 mg/l Ok want to go around 3 to 5
Po4= .25 mg/l (want to go up between .35 to .5
K= (dosed regulary)
Fe= .4 mg/l OK want .3 to .5