Seachem Flourish Potassium Aquarium Plant Fertiliser 50/100/250/500 ml
Seachem Flourish Potassium Supplement, 500 ml
Cheapest Price
In stock. Express Delivery available with Amazon Prime.
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Direct debit
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£16.79
Delivery from £4.49
Seachem Flourish Potassium Supplement, 500 ml
Cheapest Price
In stock. Express Delivery available with Amazon Prime.
Direct debit
Direct debit
Visa
Visa
Mastercard
Mastercard
£16.79
Delivery from £4.49
Seachem Flourish Potassium Supplement, 500 ml
In stock
Direct debit
Direct debit
Visa
Visa
Mastercard
Mastercard
£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 24 Mar 2026)
Based on a total of 22,693 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 22,693 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 3 - 4 working days of receiving cleared payment.
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PayPal
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£18.57
Free Delivery
Seachem Flourish Potassium Supplement, 500 ml
In stock
Direct debit
Direct debit
Visa
Visa
Mastercard
Mastercard
£18.79
Free Delivery
Seachem Flourish Potassium Plant Fertiliser Nutrition Aquarium Fish Tank
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 24 Mar 2026)
Based on a total of 22,693 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 22,693 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 1 - 3 working days of receiving cleared payment.
PayPal
PayPal
Visa
Visa
Mastercard
Mastercard
£18.90
Free Delivery
Seachem Flourish Potassium Supplement, 500 ml
In stock
Direct debit
Direct debit
Visa
Visa
Mastercard
Mastercard
£19.15
Free Delivery
Seachem Flourish POTASSIUM Macro Nutrient Aquarium Plants Fertiliser 100ml-500ml
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 24 Mar 2026)
Based on a total of 22,693 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 22,693 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 - 4 working days of receiving cleared payment.
PayPal
PayPal
Visa
Visa
Mastercard
Mastercard
£19.24
Free Delivery
Seachem Flourish Potassium, 17 oz (500 mL) (Pack of 1)
Overall Rating: 4.2 / 5 (average from multiple review sources, as of 18 Mar 2026)
Based on a total of 55,555 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 55,555 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 £12.99
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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: £16.79
- 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 €£16.79to €£22.99 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. Express Delivery available with Amazon Prime. working days offered by Amazon-marketplace.co.uk.
2 Variants from £6.39
£6.39
£63,90 / l
olibetta.uk
Delivery from £8.90
£10.29
Amazon-marketplace.co.uk
Delivery from £3.95
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£10.29
Amazon-marketplace.co.uk
Delivery from £3.95
£12.74
ebay.co.uk
Free Delivery
£6.69
Amazon-marketplace.co.uk
Delivery from £3.95
Seachem Flourish Potassium Supplement, 500 ml
£22.90
ebay.co.uk
Free Delivery
£6.39
£63,90 / 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
£16.79
In stock. Express Delivery available with Amazon Prime.
Amazon-marketplace.co.uk
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