Hydroponic Additives & Supplements

481 products

Showing 25 - 48 of 481 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 25 - 48 of 481 products
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Save $0.27
Xtreme Gardening Mykos Granular Mycorrhizal Inoculant - 100gXtreme Gardening Mykos Granular Mycorrhizal Inoculant - 100g
Xtreme Gardening Mykos Granular Mycorrhizal Inoculant - 100g
$13.38 $13.65
Save $6.93
Professor's Go Roots (100mL, 250mL, 500mL, 1L)Professor's Go Roots (100mL, 250mL, 500mL, 1L)
Professor's Go Roots (100mL, 250mL, 500mL, 1L)
From $40.12 $47.05
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Save $6.15
Professor's Go Green (1L, 2.5L, 5L, 10L or 20L)Professor's Go Green (1L, 2.5L, 5L, 10L or 20L)
Professor's Go Green (1L, 2.5L, 5L, 10L or 20L)
From $28.79 $34.94
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Save $45.00
House and Garden Roots Excelurator - 250mL
House and Garden Roots Excelurator - 250mL
$124.95 $169.95
Save $9.79
Professor's Cloning Accelerator - 1Litre
Professor's Cloning Accelerator - 1Litre
$25.70 $35.49
Save $6.20
Professor's Starter Soak (2.5, 5 or 10L)Professor's Starter Soak (2.5, 5 or 10L)
Professor's Starter Soak (2.5, 5 or 10L)
From $20.55 $26.75
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GreenPlanet Karbo Boost (600g 1kg, 2.3kg or 11.3kg)GreenPlanet Karbo Boost (600g 1kg, 2.3kg or 11.3kg)
GreenPlanet Karbo Boost (600g 1kg, 2.3kg or 11.3kg)
From $24.95
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Save $8.20
SNT Worm Castings - 10L
SNT Worm Castings - 10L
$61.75 $69.95
Save $8.74
Professor's Grow Fast (1L, 5L, 10L or 20L)Professor's Grow Fast (1L, 5L, 10L or 20L)
Professor's Grow Fast (1L, 5L, 10L or 20L)
From $30.85 $39.59
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Save $11.25
ISN Fulvic Max (1, 5 or 20L)ISN Fulvic Max (1, 5 or 20L)
ISN Fulvic Max (1, 5 or 20L)
From $25.70 $36.95
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Save $19.29
Ozi Magic - Monsta Bud - 5L
Ozi Magic - Monsta Bud - 5L
$56.60 $75.89
Save $4.22
Cyco Platinum Series Supa Sticky (250mL, 1, 5 or 20L)Cyco Platinum Series Supa Sticky (250mL, 1, 5 or 20L)
Cyco Platinum Series Supa Sticky (250mL, 1, 5 or 20L)
From $20.55 $24.77
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Save $2.99
Cyco Platinum Series Silica (250mL, 1, 5 or 20L)Cyco Platinum Series Silica (250mL, 1, 5 or 20L)
Cyco Platinum Series Silica (250mL, 1, 5 or 20L)
From $18.48 $21.47
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Save $5.00
Cyco Platinum Series Potash Plus (250mL,1, 5 or 20L)Cyco Platinum Series Potash Plus (250mL,1, 5 or 20L)
Cyco Platinum Series Potash Plus (250mL,1, 5 or 20L)
From $19.95 $24.95
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Save $16.00
House and Garden Top Shooter - 250mL
House and Garden Top Shooter - 250mL
$88.95 $104.95
Save $7.50
Mills Nutrient Vitalize (100, 250, 500mL 1 or 5L)Mills Nutrient Vitalize (100, 250, 500mL 1 or 5L)
Mills Nutrient Vitalize (100, 250, 500mL 1 or 5L)
From $51.45 $58.95
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Save $5.51
ISN Microbe Boost (1, 5 or 20L)ISN Microbe Boost (1, 5 or 20L)
ISN Microbe Boost (1, 5 or 20L)
From $51.44 $56.95
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Save $6.10
ISN Solid'as Potash (1, 5 or 20L)ISN Solid'as Potash (1, 5 or 20L)
ISN Solid'as Potash (1, 5 or 20L)
From $30.85 $36.95
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Save $7.43
Flairform Roots (250mL, 1 or 5L)Flairform Roots (250mL, 1 or 5L)
Flairform Roots (250mL, 1 or 5L)
From $19.52 $26.95
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Save $6.85
Flairform CMX (1, 5 or 20L)Flairform CMX (1, 5 or 20L)
Flairform CMX (1, 5 or 20L)
From $41.15 $48.00
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Save $12.30
Flairform Pythoff (1, 5 or 20L)Flairform Pythoff (1, 5 or 20L)
Flairform Pythoff (1, 5 or 20L)
From $46.30 $58.60
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Save $4.84
Growth Technology Fulvic (1, 5.5 or 20L)Growth Technology Fulvic (1, 5.5 or 20L)
Growth Technology Fulvic (1, 5.5 or 20L)
From $18.95 $23.79
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Save $7.13
Cyco Ryzo Fuel (250, 500mL, 1, 5 or 20L)Cyco Ryzo Fuel (250, 500mL, 1, 5 or 20L)
Cyco Ryzo Fuel (250, 500mL, 1, 5 or 20L)
From $30.85 $37.98
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Save $16.09
Rock Resinator - 1L
Rock Resinator - 1L
$45.27 $61.36

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