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External Filters

Our range of external aquarium filters, carefully selected to provide efficient and reliable filtration of your fish tank, from filtration market leaders like Fluval.

Fluval FX4 External Filter + FREE 500ML Fluval Cycle Biological Enhancer

Regular Price: £194.99

Special Price £185.24
- Comes with FREE 500ML of Fluval Cycle Biological Enhancer
- Multi-stage filter pumps out 700 gallons (2650 L) of water per hour
- Smart PumpTM - advanced microchip technology continuously monitors and optimizes pump performance
- Self-starting - just add water, plug in and Smart PumpTM will take over. Trapped air auto-evacuated every 12 hours to ensure maximum efficiency
- Easy water changes eliminate need to carry heavy buckets. Simply attach hosing to output and Smart PumpTM does the rest
- Removable, stackable media baskets eliminate water bypass and hold a total of 1 gallon (3.9 L) of media
- All filter media included - mechanical, chemical and biological
- Aqua-Stop valves with leak-proof Click-Fit attachment system
- Valves positioned at convenient 45-degree angle for easy installation and rotation
- Anti-clog, telescopic strainer ensures continuous water flow
- Multi-Directional Output nozzles can be fully adjusted to create customized water flows
- Utility Valve with drain hose for easy maintenance and flushing of canister
- Rubberized feet help ensure quiet operation
- Compact 16.5" tall design - easily fits under most aquariums
- Made in Italy
- For use in freshwater and saltwater aquariums
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Fluval FX4 External Filter + Fluval Gravel Cleaner

£214.99
- Comes with Fluval FX Gravel Cleaner
- Multi-stage filter pumps out 700 gallons (2650 L) of water per hour
- Smart PumpTM - advanced microchip technology continuously monitors and optimizes pump performance
- Self-starting - just add water, plug in and Smart PumpTM will take over. Trapped air auto-evacuated every 12 hours to ensure maximum efficiency
- Easy water changes eliminate need to carry heavy buckets. Simply attach hosing to output and Smart PumpTM does the rest
- Removable, stackable media baskets eliminate water bypass and hold a total of 1 gallon (3.9 L) of media
- All filter media included - mechanical, chemical and biological
- Aqua-Stop valves with leak-proof Click-Fit attachment system
- Valves positioned at convenient 45-degree angle for easy installation and rotation
- Anti-clog, telescopic strainer ensures continuous water flow
- Multi-Directional Output nozzles can be fully adjusted to create customized water flows
- Utility Valve with drain hose for easy maintenance and flushing of canister
- Rubberized feet help ensure quiet operation
- Compact 16.5" tall design - easily fits under most aquariums
- Made in Italy
- For use in freshwater and saltwater aquariums
Learn More
Fluval FX6 External Filter + FREE 500ML Fluval Cycle Biological Enhancer

Regular Price: £239.99

Special Price £227.99
- Comes with FREE 500ML of Fluval Cycle Biological Enhancer
- 3 year warranty, with extra 3 years extended warranty available
- Multi-Stage Filtration produces healthy aquarium water
- For fresh and saltwater aquariums
- Features Smart Pump Technology for optimal filter performance, efficiency and management
- Advanced motor technology provides better performance and reliability while consuming 10% less electricity
- Click-Fit AquaStop Valves allow fast setup and leak-proof maintenance
- Valves are positioned at 45 degree angles and rotate for easy installation
- Self-starting filter-just add water and plug in-Smart Pump Technology will do the rest
- Monthly maintenance indicator allows you to remember the date of your last filter maintenance/water change
- Heavy-duty Anti-Clog Telescopic Strainer ensures continuous flow
- Multi-Directional Output Nozzles can be adjusted to create specific water flows
- Purge Valve with Drain Hose for easy maintenance and flushing of the canister
- Water change feature eliminates need to carry buckets of water-simply attach appropriate hose to the output-Smart Pump Technology will do the rest (Kit sold separately)
- Flow rate: 2130 litres (563 US gallons) per hour
- For aquariums up to 1500 litres (400 US gallons)
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Fluval FX6 External Filter + Fluval FX Gravel Cleaner

£259.99
- Comes with Fluval FX Gravel Cleaner
- 3 year warranty, with extra 3 years extended warranty available
- Multi-Stage Filtration produces healthy aquarium water
- For fresh and saltwater aquariums
- Features Smart Pump Technology for optimal filter performance, efficiency and management
- Advanced motor technology provides better performance and reliability while consuming 10% less electricity
- Click-Fit AquaStop Valves allow fast setup and leak-proof maintenance
- Valves are positioned at 45 degree angles and rotate for easy installation
- Self-starting filter-just add water and plug in-Smart Pump Technology will do the rest
- Monthly maintenance indicator allows you to remember the date of your last filter maintenance/water change
- Heavy-duty Anti-Clog Telescopic Strainer ensures continuous flow
- Multi-Directional Output Nozzles can be adjusted to create specific water flows
- Purge Valve with Drain Hose for easy maintenance and flushing of the canister
- Water change feature eliminates need to carry buckets of water-simply attach appropriate hose to the output-Smart Pump Technology will do the rest (Kit sold separately)
- Flow rate: 2130 litres (563 US gallons) per hour
- For aquariums up to 1500 litres (400 US gallons)
Learn More
Oase FiltoSmart 60, 100, 200, 300 Aquarium External Filters

Starting at: £49.99
- Suitable for aquariums up to 60, 100, 200, 300 litres
- Compact: Optimal sized External Aquarium Filters
- Crystal clear water: Effective multi-stage mechanical and biological filtration
- Complete: Includes media, hoses, adapter, intake/outflow tube & water diffuser
- Adjustable: Water flow can be adjusted via inflow/outflow adapter
- Shut Off: Automated shut off to prevent water loss when cleaning
- Secure: Stable filter canister base, to prevent it from falling over
- Installation: Multiple installation possibilities
- Practical: Self-venting function for uncomplicated operation
- On Request: FiltoSmart 100-300 can be retrofitted with Oase HeatUp heaters
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Oase FiltoSmart Thermo 100, 200, 300 Aquarium External Filters

Starting at: £94.99
- Heater: Discreetly integrated Oase HeatUp 100w Aquarium Heater
- Compact: Optimal sized External Aquarium Filters
- Crystal clear water: Effective multi-stage mechanical and biological filtration
- Complete: Includes media, hoses, adapter, intake/outflow tube & water diffuser
- Shut Off: Automated shut off to prevent water loss when cleaning
- Adjustable: Water flow can be adjusted via inflow/outflow adapter
- Secure: Stable filter canister base, to prevent it from falling over
Learn More
Oase BioMaster 250 Aquarium Filter

£149.99
- EasyClean pre-filter module: No more bothersome removal of the filter - the pre-filter module is simply taken out, rinsed out and reinserted
- On request: Includes integrated HeatUp adjustable heater for BioMaster Thermo - it can also be retrofitted
- Well regulated: Flow control on the filter or with adapter set
- Large filter volume: The combination of mechanical and highly-effective biological filtration through Hel-X ensures healthy and clear aquarium water
- Optimal filtration: Fine 45 ppi pre-filter foam for optimal mechanical filtration of the coarse debris and longer service life of the biological media
- Safe: Shut-off automation and safety locking mechanism prevents undesired water escaping, e.g. when removing the pre-filter module
- Practical: Vent button for effective water intake - for a fast and easy start up when installing and after cleaning
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Oase BioMaster 350 Aquarium Filter

£179.99
- EasyClean pre-filter module: No more bothersome removal of the filter - the pre-filter module is simply taken out, rinsed out and reinserted
- On request: Includes integrated HeatUp adjustable heater for BioMaster Thermo - it can also be retrofitted
- Well regulated: Flow control on the filter or with adapter set
- Large filter volume: The combination of mechanical and highly-effective biological filtration through Hel-X ensures healthy and clear aquarium water
- Optimal filtration: Fine 45 ppi pre-filter foam for optimal mechanical filtration of the coarse debris and longer service life of the biological media
- Safe: Shut-off automation and safety locking mechanism prevents undesired water escaping, e.g. when removing the pre-filter module
- Practical: Vent button for effective water intake - for a fast and easy start up when installing and after cleaning
Learn More
Oase BioMaster 600 Aquarium Filter

£219.98
- EasyClean pre-filter module: No more bothersome removal of the filter - the pre-filter module is simply taken out, rinsed out and reinserted
- On request: Includes integrated HeatUp adjustable heater for BioMaster Thermo - it can also be retrofitted
- Well regulated: Flow control on the filter or with adapter set
- Large filter volume: The combination of mechanical and highly-effective biological filtration through Hel-X ensures healthy and clear aquarium water
- Optimal filtration: Fine 45 ppi pre-filter foam for optimal mechanical filtration of the coarse debris and longer service life of the biological media
- Safe: Shut-off automation and safety locking mechanism prevents undesired water escaping, e.g. when removing the pre-filter module
- Practical: Vent button for effective water intake - for a fast and easy start up when installing and after cleaning
Learn More
Oase BioMaster Thermo 250 External Aquarium Filter

£169.98
- EasyClean pre-filter module: No more bothersome removal of the filter - the pre-filter module is simply taken out, rinsed out and reinserted
- On request: Includes integrated HeatUp adjustable heater for BioMaster Thermo - it can also be retrofitted
- Well regulated: Flow control on the filter or with adapter set
- Large filter volume: The combination of mechanical and highly-effective biological filtration through Hel-X ensures healthy and clear aquarium water
- Optimal filtration: Fine 45 ppi pre-filter foam for optimal mechanical filtration of the coarse debris and longer service life of the biological media
- Safe: Shut-off automation and safety locking mechanism prevents undesired water escaping, e.g. when removing the pre-filter module
- Practical: Vent button for effective water intake - for a fast and easy start up when installing and after cleaning
Learn More