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B&Q£17.49Visit shop B&Q - 8 X Fluval U3 Compatible Plain Foam And 8 X Compatible Polymax Filter Cartridges
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Designed for aquarium enthusiasts using the Fluval U3 internal filter system, this comprehensive media set is ideal for those looking to maintain pristine water quality through consistent mechanical and chemical filtration. By combining foam pads with specialized PolyMax and Clean & Clear cartridges, it effectively manages green water, algae, and odor while promoting a stable environment for fish and plants. Note that to maintain peak efficiency, all filter components in this set must be replaced every four weeks.
| Brand | Finest-Filters |
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All filter components in this set should be replaced every 4 weeks to ensure peak filtration efficiency.
No, this set is specifically designed as a compatible replacement for the Fluval U3 internal filter only.
They do not kill algae directly; rather, they remove the phosphates and nitrates that algae need to thrive, effectively stopping new growth.
It is not recommended to use tap water as chlorine can kill beneficial bacteria. Always rinse foam in a bucket of used aquarium water.
No, this set includes mechanical foam pads and chemical cartridges. Biological ceramic rings are sold separately if required.
The resins are designed to target nitrates and phosphates and should not significantly impact your aquarium's pH level.
Check the foam pads for excessive debris buildup and rinse them in used aquarium water.
Ensure the filter is properly seated and the cartridges are pushed in fully to prevent water bypass.
Verify that your light cycle is not too long and ensure media has been replaced within the 4-week window.
This media set is purpose-built to be a direct replacement for the Fluval U3 internal filter. To install, remove the filter lid, slide out the used cartridges, and insert the new ones, ensuring a snug fit within the guide rails. We recommend rinsing the foam pads in a small amount of tank water (never tap water, to protect beneficial bacteria) during the cleaning process. To ensure the chemical resins remain effective, replace the PolyMax and Clean & Clear cartridges precisely every four weeks. Do not leave exhausted chemical media in the filter, as it may release trapped toxins back into the water.
