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>YOU got the N and S right, but I was suggesting Sodium Nitrate. I don't
>think there is not a chemical called nitrogen sulfate.
Oops. Thanks for the correction.
>I am intrigued by your comment about Potassium deficiency and TMG. Do you
>dose at label recommendations or less? What were the symptons that Claus
I believe it was yellow spots on older leaves. He suggested first raising
the amount of TMG that I used (I was already dosing at recommended levels)
and if that didn't work dosing the K separately. I tried some K2SO4 and
that worked pretty well but since I was also using the jobes sticks in the
substrate from time to time to supplement N, I got "brave"<g> and started
using KNO3 directly in the water column. I haven't had any problems with
it, and it has definitely helped.
Aquatic Gardeners Association