Hydroponic Additives & Supplements

414 products

Showing 25 - 48 of 414 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
Clonex Cloning Solution (250, 500mL, 1 or 5L)
Root Stimulators
Foliar Sprays
Foliar Sprays
Showing 25 - 48 of 414 products
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Save $0.66
Extreme Gardening Mykos Granular Mycorrhizal Inoculant - 100gExtreme Gardening Mykos Granular Mycorrhizal Inoculant - 100g
Extreme Gardening Mykos Granular Mycorrhizal Inoculant - 100g
$12.99 $13.65
Save $8.10
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 $38.95 $47.05
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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 $27.95 $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 $10.54
Professor's Cloning Accelerator - 1Litre
Professor's Cloning Accelerator - 1Litre
$24.95 $35.49
Save $6.80
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 $19.95 $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 $18.69 $23.14
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SNT Worm Castings - 10L
SNT Worm Castings - 10L
$59.95
Save $9.64
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 $29.95 $39.59
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Save $12.00
ISN Fulvic Max (1, 5 or 20L)ISN Fulvic Max (1, 5 or 20L)
ISN Fulvic Max (1, 5 or 20L)
From $24.95 $36.95
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Save $20.94
Ozi Magic - Monsta Bud - 5L
Ozi Magic - Monsta Bud - 5L
$54.95 $75.89
Save $4.43
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 $20.34 $24.77
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Save $3.53
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 $17.94 $21.47
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Save $10.76
Cyco Platinum Series Potash Plus (1, 5 or 20L)Cyco Platinum Series Potash Plus (1, 5 or 20L)
Cyco Platinum Series Potash Plus (1, 5 or 20L)
From $41.94 $52.70
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Save $16.00
House and Garden Top Shooter - 250mL
House and Garden Top Shooter - 250mL
$88.95 $104.95
Save $9.00
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 $49.95 $58.95
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Save $7.01
ISN Microbe Boost (1, 5 or 20L)ISN Microbe Boost (1, 5 or 20L)
ISN Microbe Boost (1, 5 or 20L)
From $49.94 $56.95
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Save $7.00
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 $29.95 $36.95
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Flairform Roots (250mL, 1 or 5L)Flairform Roots (250mL, 1 or 5L)
Flairform Roots (250mL, 1 or 5L)
From $18.95 $26.95
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Save $8.05
Flairform CMX (1, 5 or 20L)Flairform CMX (1, 5 or 20L)
Flairform CMX (1, 5 or 20L)
From $39.95 $48.00
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Save $13.65
Flairform Pythoff (1, 5 or 20L)Flairform Pythoff (1, 5 or 20L)
Flairform Pythoff (1, 5 or 20L)
From $44.95 $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 $11.64
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 $26.34 $37.98
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Save $17.41
Rock Resinator - 1L
Rock Resinator - 1L
$43.95 $61.36

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