Fluval External Filters

Explore our full lineup of Fluval external filters — premium canister filtration systems trusted by hobbyists for their quiet, efficient, and vibration-free performance. Whether you’re running a planted freshwater tank or a high-demand reef setup, Fluval offers models and media options tailored to your needs. Each unit combines mechanical, chemical, and biological filtration in stacked modular baskets while offering features like self-priming and AquaStop valves for easy maintenance. Browse the range below to find the ideal filter for your tank volume and livestock density.

Explore our full lineup of Fluval external filters — premium canister filtration systems trusted by hobbyists for their quiet, efficient, and vibration-free performance. Whether you’re running a planted freshwater tank or a high-demand reef setup, Fluval offers models and media options tailored to your needs. Each unit combines mechanical, chemical, and biological filtration in stacked modular baskets while offering features like self-priming and AquaStop valves for easy maintenance. Browse the range below to find the ideal filter for your tank volume and livestock density.

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 Have questions about Fluval External Filters? Checkout out our FAQ!

Have Questions About Fluval External Filters?
We Have Answers.

Get quick answers to common questions about Fluval External Filters

What is a Fluval external filter and how does it work?

A Fluval external filter is a high-performance canister filter designed to provide advanced mechanical, chemical, and biological filtration for freshwater and marine aquariums. Water is drawn from the aquarium, filtered through multiple media stages inside the canister, and then returned clean and clear.

Which Fluval external filter is best for my aquarium size?

Fluval offers a range of external filters to suit various tank sizes. The Fluval 107 and 207 are ideal for aquariums up to 130 to 220 litres. The Fluval 307 and 407 models are suitable for aquariums up to 330 to 500 litres. For larger tanks, the Fluval FX4 and FX6 are perfect, handling volumes of up to 1000 litres and beyond.

How often should I clean my Fluval external filter?

It’s recommended to clean your Fluval filter every one to two months. Regular maintenance helps maintain peak performance and prolongs the life of the unit. Always rinse filter media using aquarium water to preserve the beneficial bacteria essential for healthy water conditions.

What makes Fluval filters different from other brands?

Fluval filters are known for their innovative design, quiet operation, energy efficiency, and powerful multi-stage filtration. Features like the patented AquaStop valve and self-priming system make both setup and maintenance faster and easier than with many other brands.

Can Fluval external filters be used in both freshwater and marine tanks?

Yes, Fluval canister filters are compatible with both freshwater and saltwater aquariums. Just make sure you’re using the appropriate media for your specific tank setup.

Do Fluval filters come with all the necessary media included?

Yes, most Fluval external filters come with all the essential filter media you need to get started, including mechanical foam, activated carbon, and BioMax rings. For specific media contents, refer to the product listings on Charterhouse Aquatics.

Are replacement parts and media available for Fluval filters?

Yes, replacement parts and media are readily available. Charterhouse Aquatics stocks a wide selection of Fluval spare parts, filter media, and accessories to keep your filtration system running smoothly.

Advanced Canister Filtration for Crystal-Clear Aquariums

Choosing the right filtration system is one of the most important decisions in building a successful aquarium, and Fluval external filters have long been regarded as the gold standard in aquatic filtration technology. Designed to deliver powerful, efficient, and reliable water processing, these canister filters provide advanced mechanical, chemical, and biological filtration in one compact, easy-to-maintain unit. Whether you keep a densely stocked freshwater tank, a vibrant planted aquascape, or a complex marine or reef environment, Fluval filters ensure your water remains crystal-clear, stable, and nutrient-balanced.

Each Fluval system is engineered with precision features that make aquarium maintenance simpler and more effective. Self-priming systems allow for quick start-up without manual siphoning, while AquaStop valves enable fast disconnection for cleaning without leaks or mess. Multi-stage modular baskets let you customise filter media to suit your aquarium’s needs — from removing fine debris and organics to polishing water clarity and promoting beneficial bacteria growth. Models like the Fluval FX series even include Smart Pump™ technology, which continuously monitors and optimises performance for maximum efficiency and flow.

For aquarists seeking long-term reliability, low-noise operation, and scalable performance, Fluval external filters offer a proven solution. They not only maintain ideal water conditions but also help create a healthier, more balanced environment for fish, corals, and plants to thrive. Explore our full range of Fluval canister filters and discover why they remain one of the most trusted choices in aquarium filtration worldwide.