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Fish Tank Filters

Fish Tank Filters

A filtration system is essential in order to keep your fish tank running smoothly, whether it's a tropical paradise or a fresh water set up. The purpose of a filter is to remove excess food, decaying matter, dangerous chemicals and fish waste products from the water. This means less water changes and maintenance as you have a cleaner tank for longer. If this waste and debris is not removed, not only can the tank look dirty, but there can also be a build up of toxins which can be harmful to fish and plants.

There are three types of filtration: biological, mechanical and chemical, and at Swell UK we stock a wide range of aquarium filters which have been designed to hold all three at once. In order for your filter to do its job, you'll need to buy filter media to put inside. Using the three together ensures the clearest, purest water, and as such, a healthy tank.

Whether you're after an internal filter to sit inside your aquarium or an external filter to sit outside, there are a wide variety to choose from. Some aquariums even come complete with a filter, media and pump, saving you money and time. Take a look at our range of fish tanks for more information.

Never wash your filter or media in tap water.  This removes helpful bacteria that has built up, and could actually be harmful to your fish. Instead, rinse it out in the aquarium water, and gently wash sponge media,  this makes sure that any waste is removed but that the colonies of healthy bacteria remain.

Need some more advice or information about fish tank filters? Contact our dedicated sales team on 0161 351 4700 who will be happy to help.

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API
API Rena Nexx External Filter http://www.swelluk.com/img/shop/thumb/api_rena_nexx_filter.jpg External filters allow for more space within your tank. They also mean no wet hands when the media needs... £66.99

API Rena Nexx External Filter

External filters allow for more space within your tank. They also mean no wet hands when the media needs...

0 Reviews
In stock RRP £104.99 Save £38.00 £66.99 View
API
API Rena Nexx External Filter Extension http://www.swelluk.com/img/shop/thumb/api_rena_nexx_filter_extension.jpg Add to your API Rena Nexx External Filter with the useful Filter Extension. The extension unit allows you to... £43.99

API Rena Nexx External Filter Extension

Add to your API Rena Nexx External Filter with the useful Filter Extension. The extension unit allows you to...

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In stock RRP £74.99 Save £31.00 £43.99 View
Aqua Medic
Aqua Medic Oceanrunner Powerfilter PF1000 1000lph http://www.swelluk.com/img/shop/thumb/aquarium-internal-filter-oceanrunner-powerfilter.jpg The Aqua Medic Oceanrunner Powerfilter 1000 is a compact aquarium power head pump, combined with a mechanical... £6.69

Aqua Medic Oceanrunner Powerfilter PF1000 1000lph

The Aqua Medic Oceanrunner Powerfilter 1000 is a compact aquarium power head pump, combined with a mechanical...

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From £6.69 View
Aqua Medic
Aqua Medic Overflow Boxes 2500/5000 l/h http://www.swelluk.com/img/shop/thumb/overglow-boxes-type1and 2.jpg Aqua Medic Overflow Boxes are mounted to the outside of the aquarium to connect to an under counter filter... £124.99

Aqua Medic Overflow Boxes 2500/5000 l/h

Aqua Medic Overflow Boxes are mounted to the outside of the aquarium to connect to an under counter filter...

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From £124.99 View
Aqua Medic
Aqua Medic Riff 500 Cabinet Reef Filtration System 500 ltr http://www.swelluk.com/img/shop/thumb/aqua-medic_Riff-500.jpg The Aqua Medic Riff 500 system is an efficient 3 stage filtration system designed to sit in a cabinet under the... £414.14

Aqua Medic Riff 500 Cabinet Reef Filtration System 500 ltr

The Aqua Medic Riff 500 system is an efficient 3 stage filtration system designed to sit in a cabinet under the...

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In stock RRP £496.99 Save £82.85 £414.14 View
Aqua Medic
Aqua Medic Skim Box http://www.swelluk.com/img/shop/thumb/aqua-medic_skim-box.jpg The Aqua Medic Skim Box is a highly effective surface skimmer is designed for use in both marine and freshwater... £8.49

Aqua Medic Skim Box

The Aqua Medic Skim Box is a highly effective surface skimmer is designed for use in both marine and freshwater...

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In stock RRP £8.79 Save £0.30 £8.49 View
Eden
Eden 501 External Filter http://www.swelluk.com/img/shop/thumb/eden_501.jpg Eden external filters offer a whole host of professional features for the best possible performance. As the... £6.99

Eden 501 External Filter

Eden external filters offer a whole host of professional features for the best possible performance. As the...

0 Reviews
From £6.99 View
Eden
Eden External Filters http://www.swelluk.com/img/shop/thumb/eden_511.jpg Eden external filters offer a whole host of professional features for the best possible performance. As the... £9.99

Eden External Filters

Eden external filters offer a whole host of professional features for the best possible performance. As the...

0 Reviews
From £9.99 View
Eden
Eden External Filters with Heater http://www.swelluk.com/img/shop/thumb/eden_511.jpg The Eden 500 series external aquarium filters can be installed underneath or behind any marine or freshwater... £82.99

Eden External Filters with Heater

The Eden 500 series external aquarium filters can be installed underneath or behind any marine or freshwater...

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From £82.99 View
Eden
Eden Internal Filters http://www.swelluk.com/img/shop/thumb/eden_304.jpg Eden have a great range of excellent aquarium products. Their internal filters are suitable for both small and... £12.99

Eden Internal Filters

Eden have a great range of excellent aquarium products. Their internal filters are suitable for both small and...

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From £12.99 View
Eden
Eden Multi Stage Internal Filters http://www.swelluk.com/img/shop/thumb/eden_325_328.jpg Eden's range of internal filters work within your tank to ensure the water remains clear and clean. These... £24.99

Eden Multi Stage Internal Filters

Eden's range of internal filters work within your tank to ensure the water remains clear and clean. These...

1 Review
From £24.99 View
Eheim
Eheim 2171 Professionel 3 250T External Filter http://www.swelluk.com/img/shop/thumb/eheimpro3_250_2_t_box.jpg The Eheim 2171 Professionel 3 250T External Thermo Filter is for aquariums up to 250 Litres, with its unique... £255.77

Eheim 2171 Professionel 3 250T External Filter

The Eheim 2171 Professionel 3 250T External Thermo Filter is for aquariums up to 250 Litres, with its unique...

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In stock RRP £300.90 Save £45.13 £255.77 View
Eheim
Eheim 2173 Professionel 3 350T External Filter http://www.swelluk.com/img/shop/thumb/250T.jpg The Eheim 2173 Professionel 3 350T External Thermo Filter is for Aquariums up to 350 Litres (77 gallons), with... £302.35

Eheim 2173 Professionel 3 350T External Filter

The Eheim 2173 Professionel 3 350T External Thermo Filter is for Aquariums up to 350 Litres (77 gallons), with...

0 Reviews
In stock RRP £366.40 Save £64.05 £302.35 View
Eheim
Eheim Aquaball Internal Filters 45-180 http://www.swelluk.com/img/shop/thumb/Eheim-Aquaball-Internal-Filter-1.jpg The Eheim internal filters are a fantastic product as they are a completely flexible module system with a... £25.76

Eheim Aquaball Internal Filters 45-180

The Eheim internal filters are a fantastic product as they are a completely flexible module system with a...

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From £25.76 View
Eheim
Eheim Classic External Filters Plus http://www.swelluk.com/img/shop/thumb/classic_external_filter1-1.jpg The Eheim Classic External Filters feature carefully tailored external canister filters, equipped with high... £71.20

Eheim Classic External Filters Plus

The Eheim Classic External Filters feature carefully tailored external canister filters, equipped with high...

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From £71.20 View
Eheim
Eheim ECCO Pro http://www.swelluk.com/img/shop/thumb/eheim-ecco-1.jpg The Eheim ECCO external filter is so named because of its highly economical and efficient performance levels.... £86.70

Eheim ECCO Pro

The Eheim ECCO external filter is so named because of its highly economical and efficient performance levels....

0 Reviews
From £86.70 View
Eheim
Eheim Intake Pipe 16mm http://www.swelluk.com/img/shop/thumb/eheimhook.jpg The Eheim Intake Pipe is a hard wearing intake pipe, with a variety of uses.Made for use with the Eheim 16/22mm... £5.99

Eheim Intake Pipe 16mm

The Eheim Intake Pipe is a hard wearing intake pipe, with a variety of uses.Made for use with the Eheim 16/22mm...

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In stock RRP £8.30 Save £2.31 £5.99 View
Eheim
Eheim Professional 3e 2178 http://www.swelluk.com/img/shop/thumb/eheim_pro_2178.jpg   The Eheim Professional 3e 2178 is an electronic filter designed for freshwater aquariums between 300 and 600... £491.22

Eheim Professional 3e 2178

  The Eheim Professional 3e 2178 is an electronic filter designed for freshwater aquariums between 300 and 600...

0 Reviews
In stock RRP £577.90 Save £86.68 £491.22 View
Eheim
Eheim Professionel 3 2080 http://www.swelluk.com/img/shop/thumb/Eheim 2080 Professional 3 XL (no media).jpg The Eheim Professional 3 2080 is a large easy-to-use high power filter that incorporates lots of new features.... £379.95

Eheim Professionel 3 2080

The Eheim Professional 3 2080 is a large easy-to-use high power filter that incorporates lots of new features....

0 Reviews
In stock RRP £460.40 Save £80.45 £379.95 View
Eheim
Eheim Professionel 3 250, 350 and 600 http://www.swelluk.com/img/shop/thumb/eheim-2073-professional-3-image.jpg The Eheim Professionel 3 250, 350 and 600 are high output external filter pumps with a maximum capacity,... £150.88

Eheim Professionel 3 250, 350 and 600

The Eheim Professionel 3 250, 350 and 600 are high output external filter pumps with a maximum capacity,...

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From £150.88 View
Eheim
Eheim Professionel 3 Electronic Filters 2076 and 2078 http://www.swelluk.com/img/shop/thumb/2076-1.jpg Eheim Professionel 3e Electronic External Filters combine the filtration you'd expect from Eheim with the... £335.50

Eheim Professionel 3 Electronic Filters 2076 and 2078

Eheim Professionel 3e Electronic External Filters combine the filtration you'd expect from Eheim with the...

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From £335.50 View
Eheim
Eheim Professionel 3 Thermo Filters 2180 http://www.swelluk.com/img/shop/thumb/Professionel 3 2180 Thermo Filter.jpg The Eheim Professionel 3 Thermo Filter is a large easy-to-use high power Freshwater Thermo filter. It is... £498.95

Eheim Professionel 3 Thermo Filters 2180

The Eheim Professionel 3 Thermo Filter is a large easy-to-use high power Freshwater Thermo filter. It is...

0 Reviews
In stock RRP £604.60 Save £105.65 £498.95 View
Fluval
Fluval External Filters http://www.swelluk.com/img/shop/thumb/306.jpg For outstanding filtration performance choose the Fluval '06' External Filter range to provide multi-stage... £74.99

Fluval External Filters

For outstanding filtration performance choose the Fluval '06' External Filter range to provide multi-stage...

0 Reviews
From £74.99 View
Fluval
Fluval FX6 External Filter http://www.swelluk.com/img/shop/thumb/Fluval FX6 External Filter1.JPG The Fluval FX6 is an external filter with smart Pump technology ensures optimum flow. Fluval FX6 Smart Pump... £232.49

Fluval FX6 External Filter

The Fluval FX6 is an external filter with smart Pump technology ensures optimum flow. Fluval FX6 Smart Pump...

0 Reviews
In stock RRP £309.99 Save £77.50 £232.49 View
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