Seachem Flourish Potassium Aquarium Plant Fertiliser 50/100/250/500 ml
Seachem Flourish Potassium Supplement, 500 ml
Cheapest Price
In stock
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£17.49
Delivery from £3.95
Seachem Flourish Potassium 50ml 100ml 250ml 500ml Aquarium Plant Fish Tank Food
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 8 Apr 2026)
Based on a total of 22,550 customer reviews from independent review platforms.
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Based on a total of 22,550 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Cheapest Total Price
Will usually delivered within 1 - 2 working days of receiving cleared payment.
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£18.57
Free Delivery
Seachem Flourish Potassium Supplement, 500 ml
Overall Rating: 4.4 / 5 (average from multiple review sources, as of 16 Apr 2026)
Based on a total of 124,426 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 124,426 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
2-3 days
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£18.90
Free Delivery
Seachem Flourish Potassium Plant Fertiliser Nutrition Aquarium Fish Tank
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 8 Apr 2026)
Based on a total of 22,550 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 22,550 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Will usually delivered within 2 - 3 working days of receiving cleared payment.
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£18.90
Free Delivery
Seachem Flourish Potassium Plant Fertiliser Nutrition 500Ml
Overall Rating: 3.0 / 5 (average from multiple review sources, as of 17 Apr 2026)
Based on a total of 30,949 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 30,949 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
1-3 working days
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£18.90
Delivery from £6.00
Seachem Flourish Potassium, 17 oz (500 mL) (Pack of 1)
Overall Rating: 4.2 / 5 (average from multiple review sources, as of 17 Apr 2026)
Based on a total of 56,118 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 56,118 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
in stock
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DIRECTebanking
DIRECTebanking
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£19.95
Delivery from £12.49
Seachem Flourish Potassium Planted Aquarium Liquid Concentrated Supplement
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 8 Apr 2026)
Based on a total of 22,550 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 22,550 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Will usually delivered within 3 working days of receiving cleared payment.
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Mastercard
£20.99
Free Delivery
Seachem Flourish Potassium Supplement, 500 ml
In stock
Direct debit
Direct debit
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Mastercard
£21.34
Free Delivery
Seachem Flourish Potassium Supplement, 500 ml
In stock
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Direct debit
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Visa
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Mastercard
£21.62
Free Delivery
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Seachem Flourish Potassium Supplement, 500 ml - Details
▶ Finding you the best price!
We have found 9 prices for Seachem Flourish Potassium Supplement, 500 ml. Our price list is completely transparent with the cheapest listed first. Additional delivery costs may apply.
Seachem Flourish Potassium Supplement, 500 ml - Price Information
- Cheapest price: £17.49
- The cheapest price is offered by Amazon-marketplace.co.uk. You can order the product there.
- The price range for the product Seachem Flourish Potassium Supplement, 500 ml is €£17.49to €£27.21 with a total of 9 offers.
- Payment methods: The online shop Amazon-marketplace.co.uk supports: Direct debit, Visa, Mastercard
- Delivery: The shortest delivery time is In stock working days offered by Amazon-marketplace.co.uk.
2 Variants from £6.69
£10.29
Amazon-marketplace.co.uk
Delivery from £3.95
£6.69
Amazon-marketplace.co.uk
Delivery from £3.95
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£10.29
Amazon-marketplace.co.uk
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Amazon-marketplace.co.uk
Delivery from £3.95
£13.39
ebay.co.uk
Free Delivery
£6.99
Amazon-marketplace.co.uk
Delivery from £3.95
£20.00
£40,00 / l
olibetta.uk
Delivery from £8.90
Cheapest offer
Potassium supplement for the planted aquarium Highly concentrated (50,000 mg/L) Does not contain phosphate or nitrate
£17.49
In stock
Amazon-marketplace.co.uk
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