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 – £284.99.£11.69 – £256.49Current price is: £11.69 – £256.49.Advanced Nutrients B52
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Advanced Nutrients Big Bud
Original price was: £11.99 – £264.99.£10.79 – £238.49Current price is: £10.79 – £238.49.Advanced Nutrients Big Bud
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Advanced Nutrients Big Bud Coco
Original price was: £11.99 – £144.99.£10.79 – £130.49Current price is: £10.79 – £130.49.Advanced Nutrients Big Bud Coco
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Advanced Nutrients Bud Blood Powder
Original price was: £119.99.£107.99Current price is: £107.99.Advanced Nutrients Bud Blood Powder
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Advanced Nutrients Bud Candy
Original price was: £12.99 – £139.99.£11.69 – £125.99Current price is: £11.69 – £125.99.Advanced Nutrients Bud Candy
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Advanced Nutrients Bud Factor X
Original price was: £24.99 – £309.99.£22.49 – £278.99Current price is: £22.49 – £278.99.Advanced Nutrients Bud Factor X
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Advanced Nutrients Bud Ignitor
Original price was: £24.99 – £339.99.£22.49 – £305.99Current price is: £22.49 – £305.99.Advanced Nutrients Bud Ignitor
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Advanced Nutrients Flawless Finish
Original price was: £6.99 – £59.99.£6.29 – £53.99Current price is: £6.29 – £53.99.Advanced Nutrients Flawless Finish
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Advanced Nutrients Liquid CarboLoad
Original price was: £7.99 – £99.99.£7.19 – £89.99Current price is: £7.19 – £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 – £229.99.£10.79 – £206.99Current price is: £10.79 – £206.99.Advanced Nutrients Overdrive
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Advanced Nutrients Piranha
Original price was: £24.99 – £329.99.£22.49 – £296.99Current price is: £22.49 – £296.99.Advanced Nutrients Piranha
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Advanced Nutrients Revive – Plant Health Booster
Original price was: £9.99 – £129.99.£8.99 – £116.99Current price is: £8.99 – £116.99.Advanced Nutrients Revive – Plant Health Booster
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Advanced Nutrients Rhino Skin
Original price was: £10.99 – £129.99.£9.89 – £116.99Current price is: £9.89 – £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 – £146.99.£8.99 – £132.29Current price is: £8.99 – £132.29.Advanced Nutrients Sensizym
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Advanced Nutrients Tarantula
Original price was: £64.99 – £249.99.£58.49 – £224.99Current price is: £58.49 – £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 – £289.99.£20.69 – £260.99Current price is: £20.69 – £260.99.Advanced Nutrients Voodoo Juice
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Alien Root Rot X
Original price was: £19.99 – £69.99.£17.99 – £62.99Current price is: £17.99 – £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 – £244.99.£24.29 – £220.49Current price is: £24.29 – £220.49.Aptus Regulator – Mono Silicic Acid
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Atami Bloombastic
Original price was: £46.99 – £449.99.£42.29 – £404.99Current price is: £42.29 – £404.99.Atami Bloombastic
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Atami Rokzbastic
Original price was: £55.99 – £549.99.£50.39 – £494.99Current price is: £50.39 – £494.99.Atami Rokzbastic
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Atami Rootbastic
Original price was: £16.99 – £161.99.£15.29 – £145.79Current price is: £15.29 – £145.79.Atami Rootbastic
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Athena Balance
Original price was: £19.99 – £189.99.£17.99 – £170.99Current price is: £17.99 – £170.99.Athena Balance
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Athena Blended Grow A & B
Original price was: £89.99 – £384.99.£80.99 – £346.49Current price is: £80.99 – £346.49.Athena Blended Grow A & B
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Athena CaMg
Original price was: £18.99 – £199.99.£17.09 – £179.99Current price is: £17.09 – £179.99.Athena CaMg
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Athena Cleanse
Original price was: £25.99 – £294.99.£23.39 – £265.49Current price is: £23.39 – £265.49.Athena Cleanse
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Athena Fade
Original price was: £17.99 – £217.99.£16.19 – £196.19Current price is: £16.19 – £196.19.Athena Fade
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Athena PK
Original price was: £19.99 – £194.99.£17.99 – £175.49Current price is: £17.99 – £175.49.Athena PK
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