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.
Bio Bizz Fish Mix
Original price was: £4.99 – £119.99.£4.49 – £107.99Current price is: £4.49 – £107.99.
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This product has multiple variants. The options may be chosen on the product page
Growth Technology Formulex
Original price was: £4.99 – £33.99.£4.49 – £30.59Current price is: £4.49 – £30.59.
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This product has multiple variants. The options may be chosen on the product page
Canna PK 13/14
Original price was: £4.99 – £47.99.£4.49 – £43.19Current price is: £4.49 – £43.19.
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This product has multiple variants. The options may be chosen on the product page
Bio Bizz Calmag
Original price was: £4.99 – £104.99.£4.49 – £94.49Current price is: £4.49 – £94.49.
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This product has multiple variants. The options may be chosen on the product page
Plant Magic Boosting Powder
Original price was: £4.99.£4.49Current price is: £4.49.
Bio Bizz Alg-A-Mic
Original price was: £5.99 – £219.99.£5.39 – £197.99Current price is: £5.39 – £197.99.
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This product has multiple variants. The options may be chosen on the product page
Vitalink Plant Start
Original price was: £5.99 – £12.99.£5.39 – £11.69Current price is: £5.39 – £11.69.
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Shogun Silicon
Original price was: £5.99 – £159.99.£5.39 – £143.99Current price is: £5.39 – £143.99.
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This product has multiple variants. The options may be chosen on the product page
Ecothrive Charge
Original price was: £5.99 – £32.99.£5.39 – £29.69Current price is: £5.39 – £29.69.
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This product has multiple variants. The options may be chosen on the product page
Terra Aquatica FinalPart
Original price was: £5.99 – £54.99.£5.39 – £49.49Current price is: £5.39 – £49.49.
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Ecothrive Neutralise
Original price was: £5.99 – £179.99.£5.39 – £161.99Current price is: £5.39 – £161.99.
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House and Garden Shooting Powder 100g
Original price was: £6.99.£6.29Current price is: £6.29.
Bio Bizz Acti Vera
Original price was: £6.99 – £99.99.£6.29 – £89.99Current price is: £6.29 – £89.99.
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Vitalink Buddy
Original price was: £6.99 – £39.99.£6.29 – £35.99Current price is: £6.29 – £35.99.
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This product has multiple variants. The options may be chosen on the product page
Bio Green Flower Boost
Original price was: £6.99 – £34.99.£6.29 – £31.49Current price is: £6.29 – £31.49.
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This product has multiple variants. The options may be chosen on the product page
Clonex Pro Start
Original price was: £6.99 – £15.99.£6.29 – £14.39Current price is: £6.29 – £14.39.
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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.
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This product has multiple variants. The options may be chosen on the product page
Advanced Nutrients Liquid CarboLoad
Original price was: £7.99 – £99.99.£7.19 – £89.99Current price is: £7.19 – £89.99.
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This product has multiple variants. The options may be chosen on the product page
Canna Cannazym
Original price was: £7.99 – £129.99.£7.19 – £116.99Current price is: £7.19 – £116.99.
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This product has multiple variants. The options may be chosen on the product page
Shogun Cal Mag
Original price was: £7.99 – £159.99.£7.19 – £143.99Current price is: £7.19 – £143.99.
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This product has multiple variants. The options may be chosen on the product page
Dutchpro Leaf Green
Original price was: £7.99 – £49.99.£7.19 – £44.99Current price is: £7.19 – £44.99.
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This product has multiple variants. The options may be chosen on the product page
House and Garden PK13-14
Original price was: £7.99 – £49.99.£7.19 – £44.99Current price is: £7.19 – £44.99.
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This product has multiple variants. The options may be chosen on the product page
Bio Bizz Top Max
Original price was: £8.99 – £349.99.£8.09 – £314.99Current price is: £8.09 – £314.99.
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This product has multiple variants. The options may be chosen on the product page
Ecothrive Trace
Original price was: £8.99 – £74.99.£8.09 – £67.49Current price is: £8.09 – £67.49.
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This product has multiple variants. The options may be chosen on the product page
Growth Technology Liquid Oxygen (Oxy-Plus)
Original price was: £8.99 – £29.99.£8.09 – £26.99Current price is: £8.09 – £26.99.
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This product has multiple variants. The options may be chosen on the product page
Shogun Zenzym
Original price was: £8.99 – £324.99.£8.09 – £292.49Current price is: £8.09 – £292.49.
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This product has multiple variants. The options may be chosen on the product page
Ecothrive Flourish
Original price was: £8.99 – £74.99.£8.09 – £67.49Current price is: £8.09 – £67.49.
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This product has multiple variants. The options may be chosen on the product page
House and Garden Top Booster
Original price was: £9.99 – £59.99.£8.99 – £53.99Current price is: £8.99 – £53.99.
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This product has multiple variants. The options may be chosen on the product page
Advanced Nutrients Sensizym
Original price was: £9.99 – £146.99.£8.99 – £132.29Current price is: £8.99 – £132.29.
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This product has multiple variants. The options may be chosen on the product page
Advanced Nutrients Revive – Plant Health Booster
Original price was: £9.99 – £129.99.£8.99 – £116.99Current price is: £8.99 – £116.99.
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This product has multiple variants. The options may be chosen on the product page
Liquid Orca by Plant Success
Original price was: £9.99 – £62.99.£8.99 – £56.69Current price is: £8.99 – £56.69.
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This product has multiple variants. The options may be chosen on the product page
Dutchpro Keep It Clean
Original price was: £9.99 – £279.99.£8.99 – £251.99Current price is: £8.99 – £251.99.
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This product has multiple variants. The options may be chosen on the product page
Shogun Geisha Foliar Spray
Original price was: £9.99 – £69.99.£8.99 – £62.99Current price is: £8.99 – £62.99.
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This product has multiple variants. The options may be chosen on the product page
Dutchpro Multi Total
Original price was: £9.99 – £189.99.£8.99 – £170.99Current price is: £8.99 – £170.99.
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This product has multiple variants. The options may be chosen on the product page
Shogun PK Warrior 9/18
Original price was: £9.99 – £324.99.£8.99 – £292.49Current price is: £8.99 – £292.49.
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This product has multiple variants. The options may be chosen on the product page
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