Internal Aquarium Filters

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Stella & Chewy's Shredrs chicken and chicken liver wet dog food pouch shown from the front.
Stella & Chewy's

Stella & Chewy's Shredded Wet Dog Food, Chicken & Chicken Liver in Broth, 79 g Pouch

Stella & Chewy's Shredrs Cage Free Chicken & Chicken Liver Recipe in Broth is wet dog food for a complete and balanced meal or a topper, in a 2.8 oz (79 g) pouch. Real shredded muscle meat in slowly simmered broth — adds protein...
£20.36
£20.36
Preferhouse dog shirt shown from the front with its striped design.
Preferhouse

Preferhouse Striped Dog T-Shirts for Summer, XS–XL, Soft Quick-Dry Fabric

Preferhouse striped dog T-shirts are pet tops for summer wear and everyday outings, offered in five sizes from XS to XL with stripe and heart-pattern designs. Five sizes, XS to XL — options for small, medium, and large dogs, with a size chart to...
£21.15
£21.15
Bbmmayy Rhinestone Dog Collar shown from the front in dark blue.
Bbmmayy

Bbmmayy Rhinestone Dog Collar, Dark Blue Size S with Flower Detail and Adjustable Fit

Bbmmayy Rhinestone Dog Collar is a decorative dog collar designed to dress up your dog, with a dark blue size S fit for necks measuring 10.6–13 in (26–32 cm) and an adjustable metal buckle. Dark blue, size S fits necks 10.6–13 in (26–32 cm)...
£21.26
£21.26
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  • hygger aquarium filter shown from the front with its internal components.
    hygger

    hygger 25W UV Aquarium Internal Filter for 114–492 L Tanks with Timer

    The hygger 25W Aquarium U-V Internal Filter combines aquarium filtration, U-V light and water movement in one internal unit, with a maximum flow of 450 GPH. Fits 30–130 gallon aquariums — sized for a broad range of tank capacities. Four functions in one unit:...
    £72.47
    £72.47
  • AquaMiracle aquarium filter shown from the front as a complete submersible unit.
    AquaMiracle

    AquaMiracle SV-1200 Submersible UV Aquarium Filter, 400 GPH for 303–757 L Tanks

    AquaMiracle SV-1200 is a fully submersible U-V aquarium filter designed to clarify green water and circulate water in 80–200 gal (303–757 L) fish or turtle tanks, with a maximum flow rate of 400 GPH (1,514 L/h). 15W filter with an integrated 10W U-V light...
    £72.47
    £72.47
  • Zilla Aquatic Reptile Internal Filter shown from the front.
    Zilla

    Zilla Aquatic Turtle and Amphibian Internal Filter, Medium with Carbon Filtration

    The Zilla Aquatic Reptile Internal Filter is made to help keep water cleaner in aquatic turtle and amphibian terrariums, with size options for habitats holding up to 20 or 40 gallons of water. Carbon cartridge included — helps remove odor, waste, and debris from...
    £87.43
    £87.43
  • hygger aquarium filter shown from the front.
    hygger

    hygger 18W Internal Aquarium Filter for 75.7–284 L Tanks with UV Timer

    The hygger 18W UV internal aquarium filter combines water filtration, oxygenation, green-water cleaning and circulation for aquariums from 20 to 75 gallons, with a maximum flow rate of 300 GPH. Separate pump and UV-light switches with 4-, 8-, 12- and 24-hour timer options —...
    £67.75
    £67.75
  • Aquatop internal filter shown from the front.
    Aquatop

    Aquatop Internal Aquarium Filter, 395 GPH SP13-UV for Fresh and Saltwater

    The Aquatop SP13-UV is a 395 GPH internal aquarium filter designed to remove waste and support clear water in freshwater or saltwater tanks and sumps. 395 GPH filtration — provides filtration for aquarium setups. Freshwater and saltwater use — suits either type of aquarium....
    £180.70
    £180.70
  • COOSPIDER aquarium filter shown from the front.
    COOSPIDER

    COOSPIDER Aquarium Filter for 151–568 L Tanks, 400 GPH UV Submersible Pump

    COOSPIDER is a submersible aquarium filter for 40–150 gallon (151–568 L) tanks, combining a biochemical sponge stage with 254 nm UV treatment and a 400 GPH (1,514 L/h) pump. Fits 40–150 gallon aquariums and delivers 400 GPH — supports filtration across the stated tank...
    £70.11
    £70.11
  • Aquatop internal aquarium filter shown from the front.
    Aquatop

    Aquatop Internal Aquarium Filter, 264 GPH with 9W UV Light – SP9-UV

    Aquatop SP9-UV is a submersible aquarium filter designed to support healthier water for fish and turtles, with 264 GPH flow and an integrated 9W UV light. 264 GPH flow — provides water movement through the filter. Integrated 9W UV light — combines UV light...
    £166.54
    £166.54
  • Aquatop Internal Filter shown from the front.
    Aquatop

    Aquatop Internal Aquarium Filter, 72–126 GPH Adjustable Submersible Filter with Replaceable Sponge

    Aquatop’s 72–126 GPH Internal Filter is a submersible filter for aquarium tanks or sumps, with adjustable flow and a replaceable filter sponge for routine water filtration. Adjustable 72–126 GPH flow — tailor water movement to your tank or sump. Submersible internal design — place...
    £144.13
    £144.13
  • Aqueon QuietFlow Internal Power Filter shown from the front with its black filter body.
    Aqueon

    Aqueon QuietFlow Internal Aquarium Power Filter, Black, with 3-Stage Filtration

    Aqueon QuietFlow Internal Power Filter is a black aquarium filter designed to help keep fish-tank water clear with a three-stage filtration system. Targets particles, debris, toxins, odor and discoloration — for clearer-looking aquarium water. Patented BioGrid technology removes toxic ammonia and nitrates. Fully submersible...
    £72.43
    £72.43
  • COODIA aquarium filter shown from the front.
    COODIA

    COODIA Internal UV Aquarium Filter for Green Water, 284 L Capacity, 5-Watt Pump

    COODIA Internal Green Water Killer Aquarium Filter is designed to help clear green aquarium water, with capacity for tanks up to 75 gallons (284 L). Designed to turn green water clear in 3 to 7 days — a defined timeframe for the intended result....
    £54.78
    £54.78
  • AquaMiracle aquarium filter shown from the front with its integrated U-V light.
    AquaMiracle

    AquaMiracle SV-800 Submersible UV Aquarium Filter, 225 GPH for 75.7–265 L Tanks with Timer

    AquaMiracle SV-800 is a fully submersible U-V aquarium filter designed to filter and circulate water in 20–70 gallon (76–265 L) tanks, with a maximum flow rate of 225 GPH (852 L/h). 20–70 gallon aquarium range — sized for a range of fish tanks and...
    £60.68
    £60.68
  • Weipro TH-300B internal aquarium filter shown from the front.
    Weipro

    Weipro Internal Aquarium Filter 290 GPH, 114–189 L TH-300B with 4-Stage Filtration

    Weipro TH-300B is a submersible internal aquarium filter designed to help keep aquarium water clear, with a preset 290 GPH flow rate for 30–50 gallon tanks. Four filtration stages with sponges of different densities — captures suspended particles of varying sizes. Integrated Venturi system...
    £74.52
    £74.52
  • OASE BioCompact 25 internal filter shown from the front.
    OASE

    OASE BioCompact 25 Internal Aquarium Filter for 37.9 L Tanks, Adjustable Flow

    OASE BioCompact 25 is a compact internal filter for freshwater aquariums and paludariums up to 10 gallons (25L), with multi-stage filtration and adjustable flow. Horizontal or vertical mounting — position the filter to suit your aquarium layout. Sound-dampening housing — helps keep operation quiet...
    £52.10
    £52.10
  • hygger Aquarium Internal Filter shown from the front.
    hygger

    hygger Aquarium Internal Filter for 56.8–114 L Tanks, 170 GPH Triple Filtration

    The hygger Aquarium Internal Filter circulates and filters water in 15–30 gallon aquariums, with a flow rate of up to 170 GPH. 8.5W pump — circulates aquarium water with low-noise operation. Three interchangeable outlets — choose a round nozzle, spray bar, or flat nozzle...
    £50.06
    £50.06
  • Aqueon replacement filter cartridges shown with the product packaging from the front.
    Aqueon

    Aqueon Large Replacement Internal Filter Cartridges for QuietFlow AT30 and AT40, Two-Stage Filtration

    Aqueon Large Replacement Internal Filter Cartridges provide two-stage filtration for QuietFlow Internal Filter models AT30 and AT40, using mechanical and chemical filtration in each cartridge. Large replacement cartridge — made to fit QuietFlow Internal Filter AT30 and AT40. Two-stage filtration — combines mechanical and...
    £37.50
    £37.50
  • Weipro internal aquarium filter shown from the front.
    Weipro

    Weipro Internal Aquarium Filter, TH-280B 90 GPH with 3-Stage Sponge Filtration

    Weipro TH-280B is a submersible internal aquarium filter designed to filter and aerate freshwater tanks, with 3-stage sponge filtration and adjustable flow up to 90 GPH. Three filtration stages with sponges of different densities — capture suspended particles and impurities in the water. Adjustable...
    £44.16
    £44.16
  • AQQA submersible aquarium filter shown from the front.
    AQQA

    AQQA Submersible Aquarium Filter with Adjustable Flow, Aeration System and Quiet Operation

    AQQA Submersible Aquarium Filter is an internal filter for circulating aquarium water, with adjustable flow and an aeration system for fish, turtle, and shrimp tanks. Small, dense intake holes — designed to help keep fish from getting caught while water circulates. Adjustable flow with...
    £39.44
    £39.44
  • AQQA internal aquarium filter shown from the front.
    AQQA

    AQQA Internal Aquarium Filter for 37.9–151 L Tanks, 300 L/H Adjustable Flow

    AQQA is a submersible internal aquarium filter designed to filter, circulate and oxygenate freshwater tanks, with a 300 L/H pump and adjustable water flow. Bottom water intake keeps the pump submerged during water changes and evaporation, helping prevent dry running. Filtration, oxygenation, wave-making and...
    £42.98
    £42.98
  • Yaubay aquarium filter shown from the front with its internal submersible design.
    Yaubay

    Yaubay Aquarium Internal Filter, 18W for 208–454 L Tanks with Aeration

    Yaubay’s 18W aquarium internal filter is a submersible filtration and aeration system for 55–120 gallon (208–454 L) tanks, with a 264 GPH (about 1,000 L/h) flow rate. 360° sewage suction with bio-foam — draws in aquarium waste and helps purify water and remove odors....
    £39.43
    £39.43
  • SainSmart XpertMatic aquarium filter shown from the front.
    SainSmart

    SainSmart 45W Submersible Aquarium Filter for Freshwater and Marine Tanks

    The SainSmart XpertMatic 45W aquarium filter is a fully submersible internal filter for circulating and filtering freshwater or marine tanks, with three-stage filtration and a maximum flow rate of 792 GPH (2,999 L/h). Three-stage filtration for freshwater and marine aquariums — supports clear aquarium...
    £56.58
    £56.58
  • hygger Aquarium Internal Filter shown from the front.
    hygger

    hygger Aquarium Internal Filter for 56.8–114 L Tanks, Adjustable 4-in-1 Flow

    The hygger Aquarium Internal Filter is a submersible aquarium filter designed to support water quality in 15–30 gallon (57–114 L) freshwater or saltwater tanks, with a 210 GPH (795 L/h) flow rate and 10W pump. Four functions in one unit — filters water, increases...
    £39.97
    £39.97
  • UPETTOOLS Aquarium Internal Filter shown from the front.
    UPETTOOLS

    UPETTOOLS 4-in-1 Aquarium Internal Filter for 18.9–37.9 L Tanks with Adjustable Aeration

    UPETTOOLS Aquarium Internal Filter is a submersible 4-in-1 filter designed to move and filter aquarium water, with the product title identifying it for 5–10-gallon tanks. Dense filter sponge traps debris while helping protect small fish. Rainfall-style water flow creates gentle movement in the aquarium....
    £40.62
    £40.62
  • NO.17 internal aquarium filter shown from the front.
    NO.17

    NO.17 Submersible Aquarium Filter, 6W Adjustable Internal Pump for 3.8–37.9 L Tanks

    NO.17 is a 6W submersible internal aquarium filter designed to circulate and filter water in 1–10 gallon tanks (3.8–37.9 L), with an adjustable pump rated up to 132 GPH. Maximum flow of 132 GPH (500 L/h) and lift height up to 0.8 m —...
    £35.90
    £35.90
  • Yaubay Aquarium Internal Filter shown from the front.
    Yaubay

    Yaubay Aquarium Internal Filter for 37.9–189 L Tanks, 13W with Bio-Foam and Aeration

    The Yaubay Aquarium Internal Filter is a 13W submersible filter designed to help keep 10–50 gallon aquariums clean and oxygenated, with 212 GPH water flow and an aeration tube. 360° automatic waste suction with bio-foam — helps filter aquarium water and remove odors. 212...
    £37.07
    £37.07

Submersible filters that sit inside the tank, suited to small and medium aquariums. Look out for AQQA, hygger, Weipro and 15 more. Across the range you will see features like adjustable flow and stage filtration.

See the wider Aquarium Filters collection; nearby pages include Canister Filters, Hang-On-Back Filters and Sponge Filters.

Related categories

Questions about Internal Aquarium Filters

Who makes the products in Internal Aquarium Filters?

Internal Aquarium Filters brings together AQQA, hygger, Weipro and 15 other makers.

What should I look at before buying internal aquarium filters?

Compare features like adjustable flow and stage filtration, then check the measurements and pack quantity listed on each product page by the maker.

How much does delivery cost on Internal Aquarium Filters?

Nothing. Delivery to any UK address is free, however small the order. We prepare orders within 1–3 working days; after that, most parcels reach you within 3–7 working days, and a tracking link is emailed as soon as yours is on its way. Some Highlands and island postcodes and Northern Ireland can take a little longer.

Can I send back something from Internal Aquarium Filters?

Send it back within 30 days of delivery, for any reason, as long as it is unused and still in its original packaging. We email a prepaid label so the return costs you nothing, and the money goes back to the way you paid no later than 10 working days after the parcel reaches us.

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