Fluval Biological Filter Media Bio FX 5L for FX4/FX6 – Clear
Fluval BIO-FX Biological Filter Media, 5L - Premium Nitrifying Media for Canister Filters & Sumps (A1459)
Overall Rating: 4.4 / 5 (average from multiple review sources, as of 1 Mar 2026)
Based on a total of 120,600 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 120,600 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
2-3 days
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£28.99
Free Delivery
Fluval Bio Fix 5L Biological Filter Media for FX4 FX6 & more Aquarium Fish Tank
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 22 Feb 2026)
Based on a total of 22,153 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 22,153 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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£28.99
Free Delivery
Fluval Bio FX 5L
In stock
Direct debit
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£29.99
Free Delivery
Fluval Bio FX 5L
In stock
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£30.04
Free Delivery
Fluval Bio FX 5L Biological Filter Media Professional Fish Tank FX4 FX5 FX6
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 22 Feb 2026)
Based on a total of 22,153 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 22,153 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.
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£35.77
Free Delivery
Fluval Bio FX 5L
In stock
Direct debit
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Visa
Visa
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Mastercard
£36.26
Free Delivery
Fluval Bio FX 5L
In stock
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£38.19
Delivery from £3.95
Fluval BIO-FX Biological Aquarium Fish Tank Filter Media 5Ltr
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 22 Feb 2026)
Based on a total of 22,153 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 22,153 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.
PayPal
PayPal
Visa
Visa
Mastercard
Mastercard
£38.19
Delivery from £3.99
Fluval BIO FX Biological Aquarium Fish Tank Filter Media - 5L
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 22 Feb 2026)
Based on a total of 22,153 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 22,153 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 - 6 working days of receiving cleared payment.
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Mastercard
£38.19
Delivery from £4.50
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Fluval BIO-FX Biological Filter Media, 5L - Premium Nitrifying Media for Canister Filters & Sumps (A1459) - Details
▶ Finding you the best price!
We have found 9 prices for Fluval BIO-FX Biological Filter Media, 5L - Premium Nitrifying Media for Canister Filters & Sumps (A1459). Our price list is completely transparent with the cheapest listed first. Additional delivery costs may apply.
Fluval BIO-FX Biological Filter Media, 5L - Premium Nitrifying Media for Canister Filters & Sumps (A1459) - Price Information
- Cheapest price: £28.99
- The cheapest price is offered by onbuy.com. You can order the product there.
- The price range for the product Fluval BIO-FX Biological Filter Media, 5L - Premium Nitrifying Media for Canister Filters & Sumps (A1459) is €£28.99to €£44.95 with a total of 9 offers.
- Payment methods: The online shop onbuy.com supports: PayPal, Visa, Mastercard
- Delivery: The shortest delivery time is 2-3 days working days offered by onbuy.com.
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Cheapest offer
Fluval BIO-FX is a premium biological media designed for use with canister filters and sumps of all sizes, including the flagship FX series and 07...
£28.99
2-3 days
onbuy.com
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