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RE: Aquatic Plants Digest V3 #66
> Wait, I don't quite follow. If the problem is that by adding NO3 you
> cause your tanks to become K limited, then don't you need to be able to
> dose K and NO3 seperately? That is, shouldn't KNO3 and K2SO4 be in
> different solutions? If they're not, then what have you changed?
Before I started this I dosed the PMDD classic recipe according to the
results of my iron tests, and then added KNO3 to satisfy my nitrate
requirements. Because I do not have (and do not know of) a K test kit I
could not tell if more K2SO4 was required until the plants started to show
damage - too late IMHO.
By having both in one solution, every time I add KNO3 - according to the
results of my nitrate test kit - I also add more K in the form of K2SO4.
Mg I dont worry about as much because I add Mg and Calcium with each water
Constructive criticism is welcome.
The very act of seeking sets something in motion to meet us;
something in the universe, or in the unconscious responds as if
to an invitation. - Jean Shinoda Bolen