Additional plant care: Nitrogen supplemental fertilizer for aquaculture landscapers The dosage depends on the luminous intensity, the addition of CO2 and the consumption. Vital plant growth, avoids nitric oxide: additionally contains potassium, calcium and magnesium Dosage Verification with the JBL Nitrate Test Including: 1 bottle ProScape N Macroelements. Usage, p. 2 ml   100 l daily, with low CO2-free light: 2 ml   100 l per week