Seachem Flourish Potassium Aquarium Plant Fertiliser 50/100/250/500 ml
Seachem Flourish Potassium Supplement, 500 ml
Overall Rating: 4.2 / 5 (average from multiple review sources, as of 18 Oct 2026)
Based on a total of 26,737 customer reviews from independent review platforms.
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The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
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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 26,737 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
Only 1 left in stock (more on the way).
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Direct debit
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Mastercard
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£18.74
Free Delivery
Seachem Flourish Potassium Plant Fertiliser Nutrition Aquarium Fish Tank
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 17 Oct 2026)
Based on a total of 24,155 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 24,155 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 - 4 working days of receiving cleared payment.
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Other
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PayPal
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Wallet
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Mastercard
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Visa
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Apple Pay
Diners Club
Diners Club
£19.20
Free Delivery
Seachem Flourish Potassium Planted Aquarium Liquid Concentrated Supplement
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 17 Oct 2026)
Based on a total of 24,155 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 24,155 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.
Other
Other
PayPal
PayPal
Wallet
Wallet
Mastercard
Mastercard
Visa
Visa
Apple Pay
Apple Pay
Diners Club
Diners Club
£20.99
Free Delivery
Cheapest offer
Potassium supplement for the planted aquarium Highly concentrated (50,000 mg/L) Does not contain phosphate or nitrate
£18.74
Only 1 left in stock (more on the way).
Amazon-marketplace.co.uk
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Seachem Flourish Potassium Supplement, 500 ml - Details
▶ Finding you the best price!
We have found 3 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: £18.74
- 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 €£18.74to €£20.99 with a total of 3 offers.
- Payment methods: The online shop Amazon-marketplace.co.uk supports: Direct debit, Mastercard, Visa
- Delivery: The shortest delivery time is Only 1 left in stock (more on the way). working days offered by Amazon-marketplace.co.uk.
2 Variants from £9.99
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