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Supplements & Additives

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1120 items

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  1. -25%
    Drip Hydro pH Down Gal
    Regular Price $66.78 Special Price $50.00
  2. -16%
    Drip Hydro pH Down Quart
    Regular Price $23.80 Special Price $20.00
  3. -30%
    NEW
    Free Shipping
    PowerSi Lush 250ml
    Regular Price $40.00 Special Price $28.00
  4. -30%
    NEW
    Free Shipping
    PowerSi Lush 500ml
    Regular Price $75.00 Special Price $52.50
  5. -30%
    NEW
    Free Shipping
    PowerSi Lush 1L
    Regular Price $130.00 Special Price $91.00
  6. -30%
    NEW
    Free Shipping
    PowerSi Lush 5L
    Regular Price $500.00 Special Price $350.00
  7. -35%
    Xtreme Gardening CalCarb 6 oz
    Regular Price $34.75 Special Price $22.63
  8. -28%
    Hydrodynamics Europonic Silicate, 5 gal
    Regular Price $179.95 Special Price $130.06
  10. -35%
    Grotek Pro-Silicate 23 Liter
    Regular Price $203.38 Special Price $131.57
  11. -35%
    Super Bat Budswel, 5 gal (CA Only)
    Regular Price $237.99 Special Price $154.34
  12. -24%
    Super Bat Budswel, 1 gal (CA Only)
    Regular Price $52.49 Special Price $39.95
  13. Down To Earth High Phosphorus Seabird Guano - 5 lb
    $19.78
  14. Green Gro Granular Plus Mycorrhizae All-in-One, 15 lbs
    $257,431.98
  15. -26%
    General Hydroponics FloraPro Calcium + Micros Soluble 25 lb bag
    Regular Price $77.16 Special Price $56.74
  16. -25%
    Canna CalMag Agent 1 Liter
    Regular Price $19.01 Special Price $14.21
  17. -25%
    Canna CalMag Agent 10 Liter
    Regular Price $131.81 Special Price $98.61
  18. -25%
    Canna CalMag Agent 20 Liter
    Regular Price $250.39 Special Price $187.35
  19. -25%
    Canna CalMag Agent 5 Liter
    Regular Price $71.22 Special Price $53.27
  20. -30%
    Free Shipping
    Power Si Silicic Acid 50L
    Regular Price $6,600.00 Special Price $4,620.00
  21. -30%
    Free Shipping
    Power Si Bloom 50L
    Regular Price $4,000.00 Special Price $2,800.00
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1120 items

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Supplements & Additives
  1. Amino / Vitamins
  2. Silica
  3. Seaweed / Kelp
  4. Root Stimulator
  5. Guano
  6. Foliar Spray
  7. Flushing Agent
  8. Flower Hardener
  9. Fish Based
  10. Enzymes
  11. Carbohydrates/Sweeteners
  12. Cal-Mag
  13. Bloom Boosters
  14. Wetting Agent

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