Woefenxxx,
Excellent post!
There's some thing I need to confirm before starting my doses.
According to Chuck Gadd's calculator, the recommend level for potassium is 20ppm, and after I worked out all the numbers for my 30 gal tank, I got quite different doses from the examples given here.
1/4 tsp KNO3 gives me 7.53ppm Nitrate + 4.75ppm of potassium.
1/2 tsp K2S04 gives me 11.82ppm of Potassium
based on the 2 compounds above I should get 16.57ppm of K which is a bit less than 20ppm level but acceptable.
However, I notice that my K2SO4 is twice as much as KNO3 while all of your dosing samples here show that K2S04 is just a fraction of KNO3!
Am I doing something wrong?
Please help.
Regards,
Kevin
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