Making Your Own Hydroponics Nutrients

It has come to my attention over the years that there are many interested in making their own hydroponics nutrients so I have provided a few recipes.  The weights shown in the following tables are based on making 1 gallon of stock nutrient solution. To make more than a gallon, multiply the gram weights by the total gallons of stock nutrient solution you require, for example, 2, 5, and so forth.

making your own hydroponics nutrient


These formulas have all been tested with a wide variety of plants in the same hydroponics system, and have performed quite well. However, your results will depend upon the quality of raw materials and the precision with which you combine them.  To mix your nutrient solution, fill an empty container with clean, warm water. Multiply the listed gram weights of each specific salt by however many gallons your container holds and dissolve each salt one at a time before adding the next. Once all salts are dissolved, allow the solution to cool before diluting it for production use in your reservoir.  You will need an EC or TDS/PPM meter to determine how much of these stock solutions you will need to dilute into each gallon of water in your reservoir.

To make 1.00 gallon(s) of VEGETATIVE NUTRIENT 9.5 - 5.67 - 11.3
6.00 grams of Calcium Nitrate Ca(NO3)2
2.09 grams of Potassium Nitrate KNO3
0.46 grams of Sulfate of Potash K2SO4
1.39 grams of Monopotassium Phosphate KH2PO4
2.42 grams of Magnesium Sulfate MgSO4 * 7H2O
0.40 grams of 7% Fe Chelated Trace Elements

To make 1.00 gallon(s) of FRUITING NUTRIENT 8.2 - 5.9 - 13.6
8.00 grams of Calcium Nitrate Ca(NO3)2
2.80 grams of Potassium Nitrate KNO3
1.70 grams of Sulfate of Potash K2SO4
1.39 grams of Monopotassium Phosphate KH2PO4
2.40 grams of Magnesium Sulfate MgSO4 * 7H2O
0.40 grams of 7% Fe Chelated Trace Elements

To make 1.00 gallon(s) of FLOWERING NUTRIENT 5.5 - 7.97 - 18.4
Use 4.10 grams of Calcium Nitrate Ca(NO3)2
2.80 grams of Potassium Nitrate KNO3
0.46 grams of Sulfate of Potash K2SO4
1.39 grams of Monopotassium Phosphate KH2PO4
2.40 grams of Magnesium Sulfate MgSO4 * 7H2O
0.40 grams of 7% Fe Chelated Trace Elements 

Chelated Trace Element Mix
Iron Fe 7.00% CopperCu 0.10%
Manganese Mn 2.00% Boron B 1.30%
Zinc Zn 0.40% Molybdenum Mo 0.06%