Additives
At The Greenhouse Effect we stock a large selection of additives and nutrients for hydroponic gardening.
If you need any help please call us on 01908 585 283, our highly knowledgeable staff will be happy to assist you.
A.R.T.S Terra Bact 1 Litre
Original price was: £29.99.£26.99Current price is: £26.99.A.R.T.S Terra Bact 1 Litre
A.R.T.S. Flower Power 1 Litre
Original price was: £94.99.£85.49Current price is: £85.49.A.R.T.S. Flower Power 1 Litre
Advanced Nutrients Ancient Earth 1 Litre
Original price was: £29.99.£26.99Current price is: £26.99.Advanced Nutrients Ancient Earth 1 Litre
Advanced Nutrients B52
Original price was: £12.99 – £284.99Price range: £12.99 through £284.99. Price range: £11.69 through £256.49Current price is: £11.69 – £256.49Price range: £11.69 through £256.49.Advanced Nutrients B52
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Advanced Nutrients Big Bud
Original price was: £11.99 – £264.99Price range: £11.99 through £264.99. Price range: £10.79 through £238.49Current price is: £10.79 – £238.49Price range: £10.79 through £238.49.Advanced Nutrients Big Bud
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Advanced Nutrients Big Bud Coco
Original price was: £11.99 – £144.99Price range: £11.99 through £144.99. Price range: £10.79 through £130.49Current price is: £10.79 – £130.49Price range: £10.79 through £130.49.Advanced Nutrients Big Bud Coco
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Advanced Nutrients Bud Blood Powder
Original price was: £119.99 – £150.29Price range: £119.99 through £150.29. Price range: £107.99 through £150.29Current price is: £107.99 – £150.29Price range: £107.99 through £150.29.Advanced Nutrients Bud Blood Powder
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Advanced Nutrients Bud Candy
Original price was: £12.99 – £139.99Price range: £12.99 through £139.99. Price range: £11.69 through £125.99Current price is: £11.69 – £125.99Price range: £11.69 through £125.99.Advanced Nutrients Bud Candy
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Advanced Nutrients Bud Factor X
Original price was: £24.99 – £309.99Price range: £24.99 through £309.99. Price range: £22.49 through £278.99Current price is: £22.49 – £278.99Price range: £22.49 through £278.99.Advanced Nutrients Bud Factor X
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Advanced Nutrients Bud Ignitor
Original price was: £24.99 – £339.99Price range: £24.99 through £339.99. Price range: £22.49 through £305.99Current price is: £22.49 – £305.99Price range: £22.49 through £305.99.Advanced Nutrients Bud Ignitor
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Advanced Nutrients Flawless Finish
Original price was: £6.99 – £89.99Price range: £6.99 through £89.99. Price range: £6.29 through £80.99Current price is: £6.29 – £80.99Price range: £6.29 through £80.99.Advanced Nutrients Flawless Finish
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Advanced Nutrients Liquid CarboLoad
Original price was: £7.99 – £99.99Price range: £7.99 through £99.99. Price range: £7.19 through £89.99Current price is: £7.19 – £89.99Price range: £7.19 through £89.99.Advanced Nutrients Liquid CarboLoad
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Advanced Nutrients OG Organics Tasty Terpenes 1L
Original price was: £44.99.£40.49Current price is: £40.49.Advanced Nutrients OG Organics Tasty Terpenes 1L
Advanced Nutrients Overdrive
Original price was: £11.99 – £229.99Price range: £11.99 through £229.99. Price range: £10.79 through £206.99Current price is: £10.79 – £206.99Price range: £10.79 through £206.99.Advanced Nutrients Overdrive
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Advanced Nutrients Piranha
Original price was: £24.99 – £329.99Price range: £24.99 through £329.99. Price range: £22.49 through £296.99Current price is: £22.49 – £296.99Price range: £22.49 through £296.99.Advanced Nutrients Piranha
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Advanced Nutrients Revive – Plant Health Booster
Original price was: £9.99 – £129.99Price range: £9.99 through £129.99. Price range: £8.99 through £116.99Current price is: £8.99 – £116.99Price range: £8.99 through £116.99.Advanced Nutrients Revive – Plant Health Booster
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Advanced Nutrients Rhino Skin
Original price was: £10.99 – £129.99Price range: £10.99 through £129.99. Price range: £9.89 through £116.99Current price is: £9.89 – £116.99Price range: £9.89 through £116.99.Advanced Nutrients Rhino Skin
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Advanced Nutrients Sensi Cal Mag Xtra 1L
Original price was: £24.99.£22.49Current price is: £22.49.Advanced Nutrients Sensi Cal Mag Xtra 1L
Advanced Nutrients Sensizym
Original price was: £9.99 – £146.99Price range: £9.99 through £146.99. Price range: £8.99 through £132.29Current price is: £8.99 – £132.29Price range: £8.99 through £132.29.Advanced Nutrients Sensizym
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Advanced Nutrients Tarantula
Original price was: £64.99 – £249.99Price range: £64.99 through £249.99. Price range: £58.49 through £224.99Current price is: £58.49 – £224.99Price range: £58.49 through £224.99.Advanced Nutrients Tarantula
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Advanced Nutrients Tasty Terpenes 1 Litre
Original price was: £44.99.£40.49Current price is: £40.49.Advanced Nutrients Tasty Terpenes 1 Litre
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Advanced Nutrients Voodoo Juice
Original price was: £22.99 – £289.99Price range: £22.99 through £289.99. Price range: £20.69 through £260.99Current price is: £20.69 – £260.99Price range: £20.69 through £260.99.Advanced Nutrients Voodoo Juice
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Alien Root Rot X
Original price was: £19.99 – £69.99Price range: £19.99 through £69.99. Price range: £17.99 through £62.99Current price is: £17.99 – £62.99Price range: £17.99 through £62.99.Alien Root Rot X
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Aptus Micromix Drip – Soil Conditioner
Original price was: £21.99.£19.79Current price is: £19.79.Aptus Micromix Drip – Soil Conditioner
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Aptus Micromix Soil – Soil Conditioner
Original price was: £21.99.£19.79Current price is: £19.79.Aptus Micromix Soil – Soil Conditioner
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Aptus Mycor Mix 100g
Original price was: £31.99.£28.79Current price is: £28.79.Aptus Mycor Mix 100g
Aptus Regulator – Mono Silicic Acid
Original price was: £26.99 – £244.99Price range: £26.99 through £244.99. Price range: £24.29 through £220.49Current price is: £24.29 – £220.49Price range: £24.29 through £220.49.Aptus Regulator – Mono Silicic Acid
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Atami Bloombastic
Original price was: £46.99 – £449.99Price range: £46.99 through £449.99. Price range: £42.29 through £404.99Current price is: £42.29 – £404.99Price range: £42.29 through £404.99.Atami Bloombastic
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Atami Rokzbastic
Original price was: £55.99 – £549.99Price range: £55.99 through £549.99. Price range: £50.39 through £494.99Current price is: £50.39 – £494.99Price range: £50.39 through £494.99.Atami Rokzbastic
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Atami Rootbastic
Original price was: £16.99 – £161.99Price range: £16.99 through £161.99. Price range: £15.29 through £145.79Current price is: £15.29 – £145.79Price range: £15.29 through £145.79.Atami Rootbastic
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Athena Balance
Original price was: £19.99 – £189.99Price range: £19.99 through £189.99. Price range: £17.99 through £170.99Current price is: £17.99 – £170.99Price range: £17.99 through £170.99.Athena Balance
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Athena Blended Grow A & B
Original price was: £89.99 – £384.99Price range: £89.99 through £384.99. Price range: £80.99 through £346.49Current price is: £80.99 – £346.49Price range: £80.99 through £346.49.Athena Blended Grow A & B
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Athena CaMg
Original price was: £18.99 – £199.99Price range: £18.99 through £199.99. Price range: £17.09 through £179.99Current price is: £17.09 – £179.99Price range: £17.09 through £179.99.Athena CaMg
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Athena Cleanse
Original price was: £25.99 – £294.99Price range: £25.99 through £294.99. Price range: £23.39 through £265.49Current price is: £23.39 – £265.49Price range: £23.39 through £265.49.Athena Cleanse
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Athena Fade
Original price was: £17.99 – £217.99Price range: £17.99 through £217.99. Price range: £16.19 through £196.19Current price is: £16.19 – £196.19Price range: £16.19 through £196.19.Athena Fade
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Athena PK
Original price was: £19.99 – £194.99Price range: £19.99 through £194.99. Price range: £17.99 through £175.49Current price is: £17.99 – £175.49Price range: £17.99 through £175.49.Athena PK
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