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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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  10. Cutting Edge Solutions (42) items
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  12. Dyna-Gro (5) items
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  14. FoxFarm (31) items
  15. General Hydroponics (25) items
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  19. Heavy 16 (15) items
  20. House & Garden (44) items
  21. Humboldt County's Own / Emerald Triangle (0) items
  22. Mad Farmer (26) items
  23. Microbe Life (8) items
  24. Mills Nutrients (6) items
  25. Nectar For The Gods (40) items
  26. New Millenium (5) items
  27. Plant Success (0) items
  28. Power Si (0) items
  29. Roots Organics (32) 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 $52.50
    Save with Commercial Account: $00.00
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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 $28.00
    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 $56.00
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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 $18.50 Regular Price $28.00
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  • Family Group Image of Power Start
    Power Start
    The price depends on the options chosen on the product page
    From $34.37 Regular Price $52.00
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  • Family Group Image of Great White Mycorrhizae
    Great White Mycorrhizae
    The price depends on the options chosen on the product page
    From $40.00
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  • Family Group Image of SLF-100
    SLF-100
    The price depends on the options chosen on the product page
    From $119.75
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  • Image of Humboldt County's Own Sonic Bloom, 50 lbs
    Humboldt County's Own Sonic Bloom, 50 lbs
    Special Price $772.50 Regular Price $984.99
    Save with Commercial Account: $00.00
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  • Snowstorm Ultra, 15 gal
    Snowstorm Ultra, 15 gal
    Special Price $1,218.50 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 $35.50 Regular Price $37.79
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  • Image of SLF-100 15 Gallon
    SLF-100 15 Gallon
    Special Price $1,254.71 Regular Price $1,435.14
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