Sea Mag 0.2-0.2-3


SKU: hmh00073 Category:


HUMBOLDT NUTRIENTS Sea Mag was designed in Humboldt County to be a powerful additive for hydroponics and all growing mediums.

Sea Mag may be utilized for any type of vegetables, flowers, or herbs in conjunction with our 3 Part nutrient system.

Sea Mag is loaded with vital micronutrients in specific ratios that plants require during their growing and flowering cycles. These vital micronutrients are coupled with seaweed extract, organic acid complexes, and natural chelating substances. Adding these to our complete nutritional base regimen provides maximum flower production coupled with heavy fruit yields.


Soil Application: Apply 1-5 mL per gallon of water or fertilizer solution.

Hydroponics Application: Apply 2 mL per gallon of nutrient solution along with your base nutrients and other additives.

Foliar Application: Apply 5-10 mL per gallon of finished spray solution. Agitate thoroughly and do not spray in direct sunlight or H.I.D. light to avoid leaf burn. Apply every 1-2 weeks.

Please avoid storing in direct sunlight and protect from freezing.


  • 0.20% Total Nitrogen (N)
  • 0.20% Water Soluble Organic Nitrogen
  • 0.20% Available Phosphoric Acid (P2O5)
  • 3.00% Soluble Potash (K2O)
  • 1.50% Magnesium (Mg)
  • 1.50% Soluble Magnesium
  • 0.001% Copper (Cu)
  • 0.001% Chelated Copper
  • 0.012% Boron (B)
  • 0.012% Chelated Boron

DERIVED FROM: Ascophyllum Nodosum Seaweed, Phosphoric Acid, Potassium Phosphate, Potassium Carbonate, Magnesium Sulfate, Boron EDTA, Copper EDTA.

1% Humic Acid and 1.6% Kelp Extract Derived From Ascophyllum Nodosum, Organic Acid complex and Leonardite.

Additional information

Dimensions 12 × 12 × 12 in


Humboldt Nutrients