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Filter Media

Filter Media

Filter media is the material that sits inside a pond filter and sieves out all of the fine particles of sand, dirt and debris that can pollute the water. There are three types of media, they are often used together to perform a full and thorough clean of your pond and ensure that grime, dirt, toxins and odours are eradicated from the water.

Mechanical media simply means that the medium work to strain out any debris, dirt or grime and leave the water cleaner and healthier. This often takes the form of a sponge or pad.

Biological media uses its surface area for bacterial colonies to spread. These helpful bacteria feed on the chemicals released by fish and plant waste, removing them from your water.

Chemical media uses an additional chemical such as carbon to neutralise odours, taints to the water and more.

We hold a huge amount of filter media for every type of pond filter, so whatever type you need, we are sure to have it. Using the right type of media means that the water clarity, health and appearance of your pond is always immaculate.

Many pond filters come complete with some or all of the media needed. If you are unsure which media you need, call our sales team on 0161 351 4700.

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Blagdon
Blagdon InPond Ceramic Filter Media http://www.swelluk.com/img/shop/thumb/blagdon_InPond_Ceramic_Filter_Media.jpg Blagdon Ceramic Biological Filter Media is excellent for filtration because the ceramic rings have good surface... £13.99

Blagdon InPond Ceramic Filter Media

Blagdon Ceramic Biological Filter Media is excellent for filtration because the ceramic rings have good surface...

0 Reviews
In stock RRP £19.49 Save £5.50 £13.99 View
Blagdon
Blagdon Midipond 10000 / 14000 Media Sets http://www.swelluk.com/img/shop/thumb/blagdon_midipond_filter_foams_new.jpg The Blagdon Midipond Foam Set 1000 / 14000, includes 3 unique foam pads designed to trap all sizes of debris,... £18.99

Blagdon Midipond 10000 / 14000 Media Sets

The Blagdon Midipond Foam Set 1000 / 14000, includes 3 unique foam pads designed to trap all sizes of debris,...

0 Reviews
From £18.99 View
Blagdon
Blagdon Minipond Foam Set 4500 / 6000 http://www.swelluk.com/img/shop/thumb/blagdon_midipond_filter_foams_new.jpg Blagdon Minipond Foam Set 4500 / 6000, includes 3 unique foam pads designed to trap all sizes of debris, grit... £6.99

Blagdon Minipond Foam Set 4500 / 6000

Blagdon Minipond Foam Set 4500 / 6000, includes 3 unique foam pads designed to trap all sizes of debris, grit...

0 Reviews
From £6.99 View
Blagdon
Blagdon Professional Ceramic Biological Filter Media http://www.swelluk.com/img/shop/thumb/blagdon_biological_filter_media.jpg Blagdon Professional Ceramic Biological Filter Media is excellent for pond filtration systems supporting high... £41.99

Blagdon Professional Ceramic Biological Filter Media

Blagdon Professional Ceramic Biological Filter Media is excellent for pond filtration systems supporting high...

0 Reviews
In stock RRP £62.99 Save £21.00 £41.99 View
Blagdon
Blagdon Replacement polymer wool filter pads http://www.swelluk.com/img/shop/thumb/polymer.jpg This pack of six replacement polymer wool filter pads are designed for very small ponds such as the Affinity... £6.99

Blagdon Replacement polymer wool filter pads

This pack of six replacement polymer wool filter pads are designed for very small ponds such as the Affinity...

1 Review
In stock RRP £8.49 Save £1.50 £6.99 View
Blagdon
Blagdon Spare Filter Pad http://www.swelluk.com/img/shop/thumb/blagdon_spare_filter_pad.jpg The Blagdon Spare Filter Pad is a spare filter pad for the Affinity feature pools or for the Blagdon inpond... £15.99

Blagdon Spare Filter Pad

The Blagdon Spare Filter Pad is a spare filter pad for the Affinity feature pools or for the Blagdon inpond...

2 Reviews
In stock RRP £24.99 Save £9.00 £15.99 View
Evolution Aqua
Evolution Aqua Kaldness K1 http://www.swelluk.com/img/shop/thumb/evolution-aqua-kaldness-k1.jpg Evolution Aqua Kaldnes K1 moving Bed process, which has been scientifically tried and tested in fish farming... £35.99

Evolution Aqua Kaldness K1

Evolution Aqua Kaldnes K1 moving Bed process, which has been scientifically tried and tested in fish farming...

3 Reviews
From £35.99 View
Evolution Aqua
Evolution Aqua Pure Pond http://www.swelluk.com/img/shop/thumb/purepond1000_evolution_aqua_purepond_1000ml.jpg Evolution Aqua's Pure Pond are biodegradable balls, crammed full of live bacteria that are slowly released when... £8.99

Evolution Aqua Pure Pond

Evolution Aqua's Pure Pond are biodegradable balls, crammed full of live bacteria that are slowly released when...

7 Reviews
From £8.99 View
Swell
Swell Activated Filter Carbon http://www.swelluk.com/img/shop/thumb/swell-activated-filter-carbon-image.JPG Swell Activated Filter Carbon is ideal for any aquarium or garden pond and is a way to remove contaminants like... £2.99

Swell Activated Filter Carbon

Swell Activated Filter Carbon is ideal for any aquarium or garden pond and is a way to remove contaminants like...

2 Reviews
From £2.99 View
Swell
Swell Alfagrog http://www.swelluk.com/img/shop/thumb/garden-pond-filters-alfagrog_new.jpg Alfagrog is a very porous biological filter media that has a large surface area for bacteria to congregate in.... £19.99

Swell Alfagrog

Alfagrog is a very porous biological filter media that has a large surface area for bacteria to congregate in....

2 Reviews
In stock RRP £24.99 Save £5.00 £19.99 View
Swell
Swell Carbon Foam http://www.swelluk.com/img/shop/thumb/swell-carbon-foam-image.JPG Swell Carbon Foam is impregnated with carbon that assists with chemical filtration, removing discolouration in... £10.49

Swell Carbon Foam

Swell Carbon Foam is impregnated with carbon that assists with chemical filtration, removing discolouration in...

0 Reviews
From £10.49 View
Swell
Swell Ceramic Media (pond) http://www.swelluk.com/img/shop/thumb/swell-ceramic-bio-media-image1.JPG Swell Ceramic Media is a very porous biological filter media with an extremely large surface area which... £4.99

Swell Ceramic Media (pond)

Swell Ceramic Media is a very porous biological filter media with an extremely large surface area which...

3 Reviews
In stock RRP £9.99 Save £5.00 £4.99 View
Swell
Swell Easyclear Foams http://www.swelluk.com/img/shop/thumb/swell-easyclear-foam-image.JPG Swell replacement foams are perfectly compatible with the Hozelock Easyclears. These foams are made to the... £1.99

Swell Easyclear Foams

Swell replacement foams are perfectly compatible with the Hozelock Easyclears. These foams are made to the...

1 Review
From £1.99 View
Swell
Swell Filter Carbon http://www.swelluk.com/img/shop/thumb/swell-filter-carbon-image.JPG Swell Filter Carbon is ideal for any aquarium or garden pond and is a way to remove contaminants like metal... £0.99

Swell Filter Carbon

Swell Filter Carbon is ideal for any aquarium or garden pond and is a way to remove contaminants like metal...

1 Review
From £0.99 View
Swell
Swell Filter Wadding http://www.swelluk.com/img/shop/thumb/Kockney_Koi_Filter_Wadding.jpg Swell Filter Wadding offers superb levels of filtration to help you achieve crystal clear water quality in your... £2.49

Swell Filter Wadding

Swell Filter Wadding offers superb levels of filtration to help you achieve crystal clear water quality in your...

2 Reviews
From £2.49 View
Swell
Swell Fish Mate 10/15000 Powerclenz Foam Set http://www.swelluk.com/img/shop/thumb/swell-fishmate-poweclenz-foam-image.JPG Swell replacement foams are perfectly compatible with the Powerclenz 10,000 and 15,000. These foams are made... £22.99

Swell Fish Mate 10/15000 Powerclenz Foam Set

Swell replacement foams are perfectly compatible with the Powerclenz 10,000 and 15,000. These foams are made...

0 Reviews
In stock RRP £44.99 Save £22.00 £22.99 View
Swell
Swell Fish Mate Compact Foam http://www.swelluk.com/img/shop/thumb/swell-fishmate-compact-foam-image.JPG Swell replacement foams are perfectly compatible with the Fish Mate Compact Bio Pond Filter. These foams are... £3.69

Swell Fish Mate Compact Foam

Swell replacement foams are perfectly compatible with the Fish Mate Compact Bio Pond Filter. These foams are...

0 Reviews
In stock RRP £8.99 Save £5.30 £3.69 View
Swell
Swell Fish Mate Med/Lge Foam Set http://www.swelluk.com/img/shop/thumb/swell-fishmate-med-large-image.JPG Swell replacement foams are perfectly compatible with medium and large Fish Mate filters. These foams are made... £10.49

Swell Fish Mate Med/Lge Foam Set

Swell replacement foams are perfectly compatible with medium and large Fish Mate filters. These foams are made...

0 Reviews
In stock RRP £24.99 Save £14.50 £10.49 View
Swell
Swell Flocor http://www.swelluk.com/img/shop/thumb/kockney_koi_flocor_new.jpg Swell Flocor, is a plastic filter media that is very popular in small biological pond filters, as it is... £13.99

Swell Flocor

Swell Flocor, is a plastic filter media that is very popular in small biological pond filters, as it is...

0 Reviews
In stock RRP £15.99 Save £2.00 £13.99 View
Swell
Swell Foam Pre-Filters http://www.swelluk.com/img/shop/thumb/kockney_koi_foam_pre-filter_new.jpg Cheap and efficient, Swell Foam Pre-Filters are only available from Swell UK and will fit most of the popular... £7.99

Swell Foam Pre-Filters

Cheap and efficient, Swell Foam Pre-Filters are only available from Swell UK and will fit most of the popular...

0 Reviews
From £7.99 View
Swell
Swell Foam sets http://www.swelluk.com/img/shop/thumb/swell-foam-set-image.JPG Swell Media Foam Sets are high quality sheet foam can be cut to any size giving a large economical filter... £8.99

Swell Foam sets

Swell Media Foam Sets are high quality sheet foam can be cut to any size giving a large economical filter...

2 Reviews
From £8.99 View
Swell
Swell Green Genie Filter Foams http://www.swelluk.com/img/shop/thumb/swell-green-genie-foams-image.JPG Swell replacement foams are perfectly compatible with the Lotus Gtreen Genie. These foams are made to the same... £6.99

Swell Green Genie Filter Foams

Swell replacement foams are perfectly compatible with the Lotus Gtreen Genie. These foams are made to the same...

0 Reviews
From £6.99 View
Swell
Swell Hozelock Bioforce Foam Sets http://www.swelluk.com/img/shop/thumb/hozelock-bioforce-filter-media.jpg Swell replacement foams are perfectly compatible with the Hozelock Bioforce models 2200, 4500 and 9000. These... £5.00

Swell Hozelock Bioforce Foam Sets

Swell replacement foams are perfectly compatible with the Hozelock Bioforce models 2200, 4500 and 9000. These...

1 Review
From £5.00 View
Swell
Swell Hozelock Ecomax Foam http://www.swelluk.com/img/shop/thumb/swell-ecomax-image.JPG Swell replacement foams are perfectly compatible with the Hozelock Ecomax. These foams are made to the same... £5.99

Swell Hozelock Ecomax Foam

Swell replacement foams are perfectly compatible with the Hozelock Ecomax. These foams are made to the same...

0 Reviews
In stock RRP £7.99 Save £2.00 £5.99 View
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