3-2-1 cannabis hydroponic fertilizer


Grow Healthy Cannabis Plants

Healthy Cannabis Plants

3-2-1 it's that easy

Growing exceptional cannabis takes talent, but it does not take extraordinarily over priced fertilizers in fancy bottles with cartoon labels. Following proven plant nutritional requirements will lead to success.

Secret Recipe

The fertilizer recipe per ONE GALLON of working solution is 3 grams Hydroponic Special(5-11-26), 2 grams calcium nitrate and optionally 1 gram of epsom salt. This yields a working solution with an elemental nutrient profile as follows

N (NO3-),115.707ppm

N (NH4+),5.812ppm












EC=1.4 mS/cm


Peters Professional 5-11-26

Hydroponic Special 25# bag


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Hydroponic Special 5-11-26 fertilizer

ICL Everris, Peters Professional

Water soluble hydroponic fertilizer complete with chelated trace elements.

Designed exclusively for commercial hydroponic culture, this classic formula is ideal for most hydroponic production crops, especially tomatoes, cannabis, cucumbers and lettuce. 

Flexible B (Base) formulation is easily augmented to meet unique plant needs. Paired with Calcium Nitrate in the A stock tank to make a complete nutrient solution.

 Effective for all Water Types. Buffered to help maintain acceptable working solution pH.

Guaranteed Analysis:

Total Nitrogen (N) 5%Nitrate nitrogen (N-NO3) 5.0%Available Phosphate (P205) 11%Soluble Potash (K20) 26%Magnesium (Mg) 6.0%Water soluble 6.0%Sulfur (S) 4.0%Iron (Fe) 0.30%Chelated by EDTA 0.30%Manganese (Mn) 0.05%Chelated by EDTA 0.05%Boron (B) 0.05%Copper (Cu) 0.015%Chelated by EDTA 0.015%Molybdenum (Mo) 0.010%Zinc (Zn) 0.015%Chelated by EDTA 0.015% 

  • Classic formula designed exclusively for hydroponic culture
  • The standard in hydroponic plant culture
  • Ideal for most hydroponic crops, especially tomatoes, cannabis, cucumbers and lettuce
  • Supplies sulfur
  • Flexible: easily modified to meet unique plant needs
  • Formula is buffered to help maintain acceptable working solution pH.
  • Maximum solubility 3 lb./gal.


Yaraliva CalciNit 15.5-0-0

Greenhouse/Solution Grade Calcium Nitrate


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YaraLiva CalciNit 15.5-0-0

50 poud bag

Greenhouse Hydroponic Grade Calcium Nitrate fertilizer

YaraLiva Calcinit is a completely water soluble nitrogen and calcium fertilizer. It is a free flowing, fine granular or prilled material which dissolves quickly in water without any residues. 15.5% nitrogen (14.1% nitrate and 1.1% ammonium) 19% soluble calcium.

YaraLiva Calcinit calcium nitrate fertilizer is suited to application through all fertigation systems - hydroponics, drip systems, low volume sprinklers, center pivots and spray units.
YaraLiva Calcinit is free of chlorine and sodium


Magriculture EPSOM SALT

Agricultural Magnesium Sulfate


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Giles Magriculture®  Epsom fertilizer OMRI

Magnesium Sulfate 50 pound bag

This agricultural-grade magnesium sulfate heptahydrate (MgSO4•7H2O) is an extremely soluble and bioavailable source of magnesium and sulfur for the health of animals and plants. For plants:Magriculture contains essential plant nutrients: magnesium and sulfurOptimum solubility needed to make true clear solutions and compatible with other soluble nutrients except concentrated calcium and phosphorus solutions. Ideal source for all Fertigation Systems: center pivot, micro-jet, drip-trickle, hydroponic and foliar spray applications. OMRI approved for use in organic growing as plant or soil amendment to overcome a documented soil deficiency for magnesium.Magnesium is critical as a central element in the chlorophyll molecule to capture energy from the sun and convert it to plant sugars via photosynthesis. Magnesium is especially required in sandy soils, soils with low CEC, for crops with high Mg demand and in situations of high applications of ammonium-N and/or potassium