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Supplements & Additives

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  • Microbial Supplements (3) items
  • Silicas (3) items
  • Bloom Enhancers (2) items
  • Flushing Agents (4) items
  1. Advanced Nutrients (59) items
  2. Aptus (13) items
  3. Athena (13) items
  4. Big Time Hydroponics (5) items
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  13. Dyna-Gro (5) items
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  16. General Hydroponics (25) items
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  18. Grotek (6) items
  19. Grow More (13) items
  20. Heavy 16 (15) items
  21. House & Garden (44) items
  22. Humboldt County's Own / Emerald Triangle (0) items
  23. Mad Farmer (26) items
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  25. Mills Nutrients (6) items
  26. Nectar For The Gods (40) items
  27. New Millenium (5) items
  28. Power Si (0) items
  29. Roots Organics (32) items
  30. SLF-100 (0) items
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  32. Super Natural (6) items
  33. TechnaFlora (20) items
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12 Items

  • Family Group Image of Power Si Original Silicic Acid
    Power Si Original Silicic Acid
    The price depends on the options chosen on the product page
    From $44.22
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  • Family Group Image of Power Si Bloom
    Power Si Bloom
    The price depends on the options chosen on the product page
    From $26.91
    Save with Commercial Account: $00.00
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  • Family Group Image of Power Si Granular
    Power Si Granular
    The price depends on the options chosen on the product page
    From $53.20
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  • Family Group Image of Power PK Synergy
    Power PK Synergy
    The price depends on the options chosen on the product page
    From $17.58
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  • Family Group Image of Power Start
    Power Start
    The price depends on the options chosen on the product page
    From $32.65
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  • Family Group Image of SLF-100
    SLF-100
    The price depends on the options chosen on the product page
    From $107.08
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  • Image of BioSafe TerraGrow, 5 lb
    BioSafe TerraGrow, 5 lb
    Special Price $125.69 Regular Price $186.00
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  • Image of Humboldt County's Own Sonic Bloom, 50 lbs
    Humboldt County's Own Sonic Bloom, 50 lbs
    Special Price $738.05 Regular Price $984.99
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  • Snowstorm Ultra, 15 gal
    Snowstorm Ultra, 15 gal
    Special Price $1,096.65 Regular Price $1,602.99
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  • Image of SLF-100 275 Gallon
    SLF-100 275 Gallon
    Special Price $15,079.17 Regular Price $22,440.00
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  • Image of SLF-100 Quart
    SLF-100 Quart
    Special Price $31.95 Regular Price $37.79
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  • Image of SLF-100 15 Gallon
    SLF-100 15 Gallon
    Special Price $1,129.24 Regular Price $1,435.14
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