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To raise nitrate by 2 ppm NO₃ in 100 L: 0.33 g.
Raises nitrate in ultra-low-nutrient tanks where nitrate bottoms out. Also adds potassium.
• Use pure (stump-remover grade is sometimes pure KNO₃, but check the label for additives).
Molar mass 101.10 g/mol.
stoichiometry (IUPAC atomic weights)