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General Hydroponics Armor Si - 473ML / 946ML | Silica | Increase Bio Mass

SKU: ADDT35200
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Armor Si is a premium form of soluble silica that strengthens the internal cells of plants, creating more biomass and foliar development. Plants will additionally experience improved heat and cold tolerance, stress resistance, improved light absorption, and increased protection from botrytis and other fungal infections.

  • Stronger, larger cell structure for increased weight and foliar development
  • Stronger structure makes plants more tolerant to hot or cold conditions
  • Makes plants more resistant to Bud Rot (botrytis) and external fungi
  • Stronger lateral branching and flower development
  • Suitable for all types of plants and all types of growing media



  • Soluble Potash (K2O)...................................4%

Derived from Potassium Silicate.


  • 10% Silicon Dioxide (SiO2) derived from Potassium Silicate.

In The Box

  • [1] x General Hydroponics Armor Si - 730ML / 946ML

Add Armor Si to fresh water first. Stir while adding. Next add fertilizer to water. Check and adjust pH range to 5.5 to 6.5.

  • Mild strength, add 1⁄4 teaspoon Armor Si per gallon water (0.25ml per Liter).
  • Full Strength, add 1⁄2 teaspoon Armor Si per gallon water (0.5ml per Liter).
  • Maximum Strength, add 1 teaspoon Armor Si per gallon of water (1ml per Liter).
  • Foliar Spray: add 1⁄4 to 1⁄2 teaspoon Armor Si per gallon water.

Armor Si is a powerful base (extremely alkaline). It will raise nutrient pH. The more you add to your nutrient solution, the more it will raise pH. Do not allow nutrient pH to rise higher than 6.5.