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Aquarium Filters & Pumps UK

Compare aquarium filters and pumps for your tank volume, fish and feeding load. Check flow adjustment, media capacity and the parts included.

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3 things to check before orderingShow
  • Check the listing for the exact model, pack size and current price
  • Confirm dimensions and compatibility with your aquarium setup
  • Read the product directions and specifications before ordering
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Current Aquarium Filters & Pumps listings

No aquarium filters & pumps listings are available right now

Explore the wider shop, or read the selection advice below.

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Before you choose from this collection

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Choose filtration for the aquarium volume, fish and feeding load, with a flow the inhabitants can tolerate. Check whether a pump, tubing and filter media are included or need to be bought separately.

Biological filter media provide surfaces for bacteria that process ammonia and nitrite. A new filter must mature before it can handle the aquarium’s waste load; clear-looking water alone does not show that it is safe.

Gentle sponge filtration can suit fry and shrimp, while internal and external filters offer different media capacities and maintenance access. Compare the manufacturer’s tank rating, flow adjustment and actual stocking load rather than using one turnover rule for every aquarium.

Explore related collections

Visual route into our wider UK live-fish range.

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Fish Food

Flakes, pellets, wafers, frozen and live foods for aquarium and pond animals. Check the intended species, food size and pack or case quantity.

Aquarium Lighting

Aquarium Lighting

Check tank dimensions, light output, mounting and controller compatibility when choosing aquarium lighting for fish or planted tanks.

Water Care Supplies

Water Care Supplies

Water preparations for different jobs: Esklarin conditioner in a Supervit Duopack, and separate Artemia hatching salt. Check each product’s use before dosing.

Aquarium Accessories

Aquarium Accessories

Compare sizes, materials and pack contents when choosing aquarium accessories for tank maintenance, substrate preparation or fish transport.

Frequently asked questions

Start with the manufacturer’s recommended aquarium size, then consider stocking, feeding, media capacity and the flow your fish can tolerate. A litres-per-hour figure alone does not measure biological capacity, and fitted media and pipework can reduce flow. Check ammonia and nitrite to assess how the established system is coping.
Choose for the aquarium and its inhabitants. Sponge filters can provide gentle filtration for fry or shrimp; internal and external filters offer different space, media and maintenance arrangements. Check the specific model rather than assuming every filter of one type has the same capacity.
Because your beneficial bacteria live in the media — replacing or deep-cleaning it all at once removes the biological filter and can trigger an ammonia spike. Rinse media gently in old tank water, not tap water, and replace only part at a time. Preserving the bacteria colony is the whole point of mature filtration.
Usually not for a standard tank — most internal and external filters provide their own flow and surface agitation. You might add a separate powerhead or air pump for extra circulation in a large or long tank, for a sponge filter, or to boost oxygen in warm weather. Check what your chosen filter includes.
Check for accumulated debris and reduced flow, following the filter manufacturer’s maintenance instructions. Gently rinse reusable biological sponges or media in removed aquarium water, avoiding chlorinated tap water. Avoid replacing all biological media at once, and monitor water quality after maintenance.
Compare the complete system, including any separate pump, media, tubing and replacement parts. Check what is included before comparing prices.

Watch: Aquarium Filters & Pumps in 60 seconds

Short clips from our own channel — the things keepers most often get wrong, answered in a minute.

Never replace your filter cartridge monthlyThe monthly replacement schedule is a reorder schedule: throwing the cartridge away discards the biological filter that keeps ammonia at zero.

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