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Supplements & Additives

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  1. -38%
    Drip Hydro pH Up Gal
  2. -40%
    Drip Hydro pH Down Gal
  3. -38%
    Drip Hydro pH Down Quart
  4. -29%
    NEW
    PowerSi Lush 250ml
  5. -34%
    NEW
    PowerSi Lush 500ml
  6. -33%
    NEW
    PowerSi Lush 1L
  7. -31%
    NEW
    PowerSi Lush 5L
  8. -35%
    Xtreme Gardening CalCarb 6 oz
  10. -28%
    Hydrodynamics Europonic Silicate, 5 gal
  11. -36%
    Earth Juice Xatalyst, 1 gal
  12. -35%
    Grotek Pro-Silicate 23 Liter
  13. -35%
    Super Bat Budswel, 5 gal (CA Only)
  14. -24%
    Super Bat Budswel, 1 gal (CA Only)
  15. Down To Earth High Phosphorus Seabird Guano - 5 lb
  16. -27%
    Green Gro Granular Plus Mycorrhizae All-in-One, 15 lbs
  17. Microbe Life Plus-C, 1 qt (CA ONLY)
  18. -33%
    Power Si Granular 2 kg
  19. -30%
    Athena Stack 5 Gallon
  20. -33%
    Mills Nutrients Vitalize, 20 Liter
  21. -21%
    Rare Dankness Nutrients Perfecta FORTIFY, 1 gallon pail, 6 lbs
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1459 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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