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Hydroponic Nutrients

Hydroponic System DiagramMany hydroponic formulas have been developed over the past 40 years with some designed for specific plants while others are designed for general hydroponic gardening. For plant growth, the concentration of individual elements must stay within certain ranges that have been determined through scientific experimentation.

The average concentration of these elements should fall within these parameters:

  • Nitrogen (nitrate form) 70 -300 PPM
  • Nitrogen (ammonium form) 0 -31 PPM
  • Potassium 200 -400 PPM
  • Phosphorous 30 -90 PPM
  • Calcium 150 -400 PPM
  • Sulfur 60 -330 PPM
  • Magnesium 25 -75 PPM
  • Iron .5 -5.0 PPM
  • Boron .1 -1.0 PPM
  • Manganese .1 -1.0 PPM
  • Zinc .02 -.2 PPM
  • Molybdenum .01 -.1 PPM
  • Copper .02 -.2 PPM

*PPM = parts per million

Hydroponic Nutrient Mixes

A gardener can purchase all of these minerals separately and mix their own hydroponic fertilizer. Unfortunately, the fertilizers that make up a hydroponic formula aren't sold as pure nitrogen or pure potassium, so it gets more complex. They are sold as chemical compounds, such as calcium nitrate, potassium nitrate, magnesium sulfate, potassium sulfate and mono potassium phosphate.

Since there are many dependable pre-mix hydroponic formulas available, it is generally more efficient and more economical to use a proven formula that contains all of the above mentioned nutrients in the correct quantities for plant growth. one that you simply add to water.

Whether you are using a pre-mixed formula or creating your own" it is important to follow these guidelines:

  • Weigh or measure the nutrients carefully.
  • Place the nutrients in separate piles or containers to be sure the proportions make sense.
  • Be sure no components are left out or measured twice.
  • Accuracy should be within 5 %.
  • When you are sure the proportions are correct, pour your nutrients into the water in the mixing containers and stir vigorously. Nutrients will dissolve best in warm water.
  • Measure the nutrient concentration level and record it.

Listed below are a variety of nutrient mixes to get you started, you can also read through our Getting the Best out of your Nutirents article for some great tips on where to start and how much to spend.

(nutrient,nutrients)

6lb Kit Jacks 321 Hydroponic Fertilizer Nutrient Plant Food Grow Bloom General picture

6lb Kit Jacks 321 Hydroponic Fertilizer Nutrient Plant Food Grow Bloom General

$28.75



2lb Kit Jacks 321 Hydroponic Fertilizer Nutrient Plant Food Grow Bloom General picture

2lb Kit Jacks 321 Hydroponic Fertilizer Nutrient Plant Food Grow Bloom General

$20.00



14lb Kit Jacks 321 Hydroponic Fertilizer Nutrient Plant Food Grow Bloom General picture

14lb Kit Jacks 321 Hydroponic Fertilizer Nutrient Plant Food Grow Bloom General

$64.50



FoxFarm Soil Trio Nutrient Bundle (Big Bloom, Grow Big, Tiger Bloom) 16oz / Pint picture

FoxFarm Soil Trio Nutrient Bundle (Big Bloom, Grow Big, Tiger Bloom) 16oz / Pint

$31.87



Advanced Nutrients Rhino Skin Plant Nutrient Support and Potency Enhancer 250ml picture

Advanced Nutrients Rhino Skin Plant Nutrient Support and Potency Enhancer 250ml

$11.69



Advanced Nutrients Grow. Micro, Bloom Bundle pH Perfect Base GMB picture

Advanced Nutrients Grow. Micro, Bloom Bundle pH Perfect Base GMB

$38.98



Hydroponic AeroGarden Compatible Nutrients 20-20-20 All Purpose Formula picture

Hydroponic AeroGarden Compatible Nutrients 20-20-20 All Purpose Formula

$9.95



Advanced Nutrients B-52 - fertilizer booster bloom vitamins enhancer picture

Advanced Nutrients B-52 - fertilizer booster bloom vitamins enhancer

$37.99



Advanced Nutrients Grow Micro Bloom pH Perfect Bundle Set Combo Base Nutrient 4L picture

Advanced Nutrients Grow Micro Bloom pH Perfect Bundle Set Combo Base Nutrient 4L

$114.89



Advanced Nutrients Sensi Cal-Mag Xtra Plant Nutrient, 1L 1 Liter litre picture

Advanced Nutrients Sensi Cal-Mag Xtra Plant Nutrient, 1L 1 Liter litre

$21.99



12oz Kit Jacks 321 Hydroponic Fertilizer Nutrient Plant Food Grow Bloom General  picture

12oz Kit Jacks 321 Hydroponic Fertilizer Nutrient Plant Food Grow Bloom General

$12.50



Fox Farm Soil Trio Nutrients Bundle, Big Bloom, Grow Big, Tiger Bloom Pint 16oz picture

Fox Farm Soil Trio Nutrients Bundle, Big Bloom, Grow Big, Tiger Bloom Pint 16oz

$31.98



Advanced Nutrients Ancient Earth 250mL - leonardite potassium humic acid fulvic picture

Advanced Nutrients Ancient Earth 250mL - leonardite potassium humic acid fulvic

$10.95



Advanced Nutrients Trio: Grow, MIcro & Bloom 1oz or 2oz -- 3-Bottle Kit picture

Advanced Nutrients Trio: Grow, MIcro & Bloom 1oz or 2oz -- 3-Bottle Kit

$11.95



Mammoth Organic Bloom Booster Mammoth P Organic Fertilizer Hydroponic Nutrient picture

Mammoth Organic Bloom Booster Mammoth P Organic Fertilizer Hydroponic Nutrient

$85.17



Advanced Nutrients ~ Bloom 1oz or 3oz Liquid ~ pH Perfect Base Nutrient  picture

Advanced Nutrients ~ Bloom 1oz or 3oz Liquid ~ pH Perfect Base Nutrient

$11.99



Advanced Nutrients Voodoo Juice 1L, 4L, 10L root booster beneficial bacteria picture

Advanced Nutrients Voodoo Juice 1L, 4L, 10L root booster beneficial bacteria

$163.99



Green Planet nutrients 3 part starter kit Grow veg flower organic premium  picture

Green Planet nutrients 3 part starter kit Grow veg flower organic premium

$74.99



32 oz. Base Nutrient Part A picture

32 oz. Base Nutrient Part A

$16.27



Advanced Nutrients pH Perfect Connoisseur Coco Bloom Part A Plant Nutrient 1 ... picture

Advanced Nutrients pH Perfect Connoisseur Coco Bloom Part A Plant Nutrient 1 ...

$35.19