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Potassium versus Potassium?

1447 Views 2 Replies 3 Participants Last post by  Hoppy, 
S
What are the pros and cons of using the different potassiums as fertilizer/

Potassium Chloride, Potassium Bicarbonate, Potassium Sulfate, etc. I know Potassium Nitrate will add nitrates and that might not be beneficial if you have enough nitrates in your aquarium.
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mistergreen
They all have different amounts of potassium given the same volume, like a teaspoon.

I'd go with potassium sulfate & nitrate. Plants don't have too much use for chloride and the bicarbonate will alter the water's chemistry.
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H
Potassium nitrate is best and Potassium sulfate is next best. Plants need potassium, nitrates, and sulfates.
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