Hydroponic Additives & Supplements

542 products

Showing 1 - 24 of 542 products

Hydroponic Additives & Supplements by Category

Professor's Organic Grow Fast (1, 5 or 10L)
Soil Additives
Professor's Grow Fast (1L, 5L, 10L or 20L)
Grow Additives
Green Planet Massive Bloom Formulation (1L, 5L, or 20L)
Flowering Additives
Growth Technology Clonex Cloning Solution (250, 500mL, 1 or 5L)
Root Stimulators
Foliar Sprays
Foliar Sprays
Showing 1 - 24 of 542 products
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Save $4.75
Green Planet - Pro Cal (1, 5L or 20L)Green Planet - Pro Cal (1, 5L or 20L)
Green Planet - Pro Cal (1, 5L or 20L)
From $18.39 $23.14
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Save $23.60
Growth Technology Kit - Foliage Focus 1L - Rootzone 250mL
Growth Technology Kit - Foliage Focus 1L - Rootzone 250mL
$41.35 $64.95
Save $10.40
Growth Technology Rootzone - 250mL
Growth Technology Rootzone - 250mL
$27.55 $37.95
Save $20.28
GT Starter Kit - Foliage Focus - Rootzone - CCS & Clonex
GT Starter Kit - Foliage Focus - Rootzone - CCS & Clonex
$72.67 $92.95
Save $17.44
Green Planet - Rezin (1L, 5L or 20L)Green Planet - Rezin (1L, 5L or 20L)
Green Planet - Rezin (1L, 5L or 20L)
From $64.39 $81.83
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Save $8.36
Growth Technology GT Foliar Spray - 500mL With Sprayer
Growth Technology GT Foliar Spray - 500mL With Sprayer
$15.59 $23.95
Save $10.00
Green Planet Liquid Weight (1L, 5L, or 20L)Green Planet Liquid Weight (1L, 5L, or 20L)
Green Planet Liquid Weight (1L, 5L, or 20L)
From $37.71 $47.71
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Save $17.44
Green Planet - Vitathrive Propagation Solution (1L, 5L Or 20L)Green Planet - Vitathrive Propagation Solution (1L, 5L Or 20L)
Green Planet - Vitathrive Propagation Solution (1L, 5L Or 20L)
From $64.39 $81.83
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Save $21.24
Growth Technology Rootzone - 1L
Growth Technology Rootzone - 1L
$71.71 $92.95
Save $5.55
Green Planet - PK Spike (1L, 5L or 20L)Green Planet - PK Spike (1L, 5L or 20L)
Green Planet - PK Spike (1L, 5L or 20L)
From $28.51 $34.06
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Save $46.68
Growth Technology Kit - Foliage Focus 5L - Rootzone 1L
Growth Technology Kit - Foliage Focus 5L - Rootzone 1L
$123.27 $169.95
Save $13.92
Green Planet Plant Guard (1L, 5L, or 20L)Green Planet Plant Guard (1L, 5L, or 20L)
Green Planet Plant Guard (1L, 5L, or 20L)
From $54.27 $68.19
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Save $90.72
Green Planet Dual Fuel Starter Kit Plus Extra Additives
Green Planet Dual Fuel Starter Kit Plus Extra Additives
$204.23 $294.95
Save $23.05
Mammoth P / Microbe Phosphorus Booster - (120mL, 250mL, 500mL, 1L or 4L)Mammoth P / Microbe Phosphorus Booster - (120mL, 250mL, 500mL, 1L or 4L)
Mammoth P / Microbe Phosphorus Booster - (120mL, 250mL, 500mL, 1L or 4L)
From $87.39 $110.44
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Save $7.75
Growhard Australia - Liquid Lead (1L, 5L or 20L)Growhard Australia - Liquid Lead (1L, 5L or 20L)
Growhard Australia - Liquid Lead (1L, 5L or 20L)
From $35.87 $43.62
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Save $2.00
GreenPlanet Bud Booster (60g, 500g 1L, 5L or 10kg)GreenPlanet Bud Booster (60g, 500g 1L, 5L or 10kg)
GreenPlanet Bud Booster (60g, 500g 1L, 5L or 10kg)
From $11.95 $13.95
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Save $14.85
Superthrive (120, 480, 960mL or 3.7L)Superthrive (120, 480, 960mL or 3.7L)
Superthrive (120, 480, 960mL or 3.7L)
From $39.75 $54.60
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Save $12.41
HY-GEN Budlink Silica Additive (1,2,5 or 20L)HY-GEN Budlink Silica Additive (1,2,5 or 20L)
HY-GEN Budlink Silica Additive (1,2,5 or 20L)
From $24.45 $36.86
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Save $8.51
Professor's Extreme Boost (250, 500g, 1kg or 5kg)Professor's Extreme Boost (250, 500g, 1kg or 5kg)
Professor's Extreme Boost (250, 500g, 1kg or 5kg)
From $27.55 $36.06
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Save $20.81
Professor's Organic Terpene Gold (1, 5, 10 or 20L)Professor's Organic Terpene Gold (1, 5, 10 or 20L)
Professor's Organic Terpene Gold (1, 5, 10 or 20L)
From $37.67 $58.48
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Save $10.99
Professor's Flower Boost (1L, 5L, 10L or 20L)Professor's Flower Boost (1L, 5L, 10L or 20L)
Professor's Flower Boost (1L, 5L, 10L or 20L)
From $29.39 $40.38
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Save $24.09
Plant Success Great White Shark Microbial (150 or 750g)Plant Success Great White Shark Microbial (150 or 750g)
Plant Success Great White Shark Microbial (150 or 750g)
From $65.86 $89.95
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Save $13.22
GT Foliar Spray 5.5L With Sprayer
GT Foliar Spray 5.5L With Sprayer
$44.11 $57.33
Save $5.60
GreenPlanet - Horti RawK (100g, 500g, 1kg, 5kg, or 10kg)GreenPlanet - Horti RawK (100g, 500g, 1kg, 5kg, or 10kg)
GreenPlanet - Horti RawK (100g, 500g, 1kg, 5kg, or 10kg)
From $7.35 $12.95
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