Best Uv Klärer Test 2025

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Last Updated - 09/06/2025

Best Choice

01

SunSun

SunSun CUV 236 36 W Pond Clarifier

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9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Protects your fish from disease-spreading germs, safe and good for fish and plants
Maximum flow rate. 6000 L/H for a pressure of maximum. 0.3 bar.
Keeps water clear and cleans pond water without the addition of chemicals.
Keeps algae, bacteria and mould build-up under control
36 W UV output for max.45 m³ pond size, hose 19 to 32 mm, 5 m cable

92,99 €
Value for Money

02

SunSun

SunSun CUV-136 Pond Clarifier 4500 l/h / 36 W UVC Clarifier for Pond Filter & Pond Pump Water Clarifier with UV Lamp Light Filter for Algae Control

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9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

[Effective Algae Control] - Reduces algae growth and effectively prevents the formation of bacteria and mould in pond water, improving water quality and ecosystem.
[Easy Integration] - Thanks to universal connections, effortless installation into any existing pond system is possible without additional complications or changes to the existing setup.
Reliable performance: ensures quick and efficient clarification of pond water to ensure clear vision and healthy water inhabitants.
Healthy pond environment: promotes a balanced ecological balance, which has a positive effect on the living conditions of fish, plants and other aquatic life.
Durable quality: high-quality materials and careful workmanship guarantee long-term and reliable performance, so you will enjoy your UVC pond clarifier for a long time.

70,99 €
03

Coospider

Aquarium U-V Filter Pump for 150-380L Fish Tank, 5W Lamp Anti Algae U-V Clarifier, 1200L/h Crystal Clear Algae Killer Water Pump Air Supply Flow Pump for Cold Water Tropical Fish

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

【1 year after-sale service】We offer you a 4000 hour warranty and friendly customer service. If you are not satisfied with our machine in any way after receiving the aquarium pump, please contact the service mailbox on the package.
Separate switch: control the water pump and the aquarium light separately. If you only want to use the water pump, you can turn off the aquarium light separately.
Easy to check light up: you can easily check whether the light is switched on from the outside of the machine, do not need to disassemble the machine to see it.
Crystal clear: built-in 254 nm wavelength fish tank U-V light. It is used in green water aquariums. Make your aquarium crystal clear. It can reduce the number of tank water changes and you don't have to spend much effort to change the water.
Air supply and fresh smell: Once the aquarium is full of green algae, it is accompanied by the smell. This machine can reduce the smell in the aquarium and generate air bubble to add oxygen to your tank water. Simulation of the natural ecology environment.

43,99 €
04

Ecomax

EcoMax 10000 UVC clarifier, 11W

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

UV-C light filter 11 W for ponds up to 10,000 litres
Optical function control
Frees the water from algae, discolouration, germs and harmful bacteria
Dimensions: 335 x 230 x 185 mm
Branded UVC bulbs included (thus longer service life)

46,29 €
05

OMECO

OMECO 5 in 1 8 W UVC Clarifier Aquarium Internal Filter with Timer 800 L/H Adjustable Aquarium Internal Filter with UVC Clarifier Aquarium Pump for Sea Water and Sweet Basin 150-300 L Aquarium Volume

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Quiet and easy to assemble: the aquarium filter pump with suction design can be mounted directly on the wall of the aquarium. UVC clarifier aquarium indoor air pump quiet, more stable engine running, suitable for fresh and sea water. 800L/H pump head can reach 0.8m. If you encounter product problems, please contact us in time. Our professional customer service will help you solve your problem quickly.
Medium aquarium tank: aquarium pump with filter through the oxygen injector additional oxygen, suitable for small and medium pools with water volume up to 175L-300L, aquarium filter pump is not suitable for large volume ponds. The maximum power of the water pump is 8 W, which saves energy and reduces emissions.
8 W UVC clarifier aquarium: UV filter aquarium inside by placing UVC clarifier pumps, some microorganisms are killed, the growth of algae and moss slows, the growth of viruses inhibited and achieves a healthy environment that corresponds to the growth of fish. UVC clear aquarium inner filter for aquariums allows you to control the UV lamps with a separate on/off switch. and you can choose whether and you you should run 4, 8 or 24 hours a day.
5-in-1 aquarium pump: the built-in filter pump in the aquarium filter continuously water for sterilisation, filtration, water pump, oxygen, timer increase. The aquarium filter pump is a filter sponge and precipitation spraying, effective filtering of harmful substances in the water, which simulates the effect of a waterfall and creates a good and healthy environment for fish.
180 Rotatable Filter Outlet: aquarium pump outlet adopts 180° rotating design to control the flow rate of the spray rod and outlet, as well as an oxygen injector that provides the aquarium with extra oxygen, creating a healthy environment for fish and aquatic plants

39,99 €
06

OMECO

OMECO 4-in-1 Aquarium Filter Pump 700 L/h with 9 W UVC Clarifier Internal Filter Aquarium Pump Water Pumps for Freshwater and Saltwater Basins, 150-300 L Aquarium Volume with Filter Material

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

UVC clarifier 9 W aquarium: UV filter aquarium inside by placing UVC clarifier pumps, some microorganisms are killed, the growth of algae and moss slows, inhibits the growth of viruses and achieves a healthy environment that corresponds to the growth of fish. Aquarium UVC clarifier can be switched on by a separate switch. (Warm tips: the UV lamp inside the air purifier is a consumption product with a life cycle, so we recommend that you replace the internal lamp after 6 months to avoid the product cannot be used efficiently.)
Quiet and easy to assemble: the aquarium filter pump with suction design can be mounted directly on the wall of the aquarium. UVC clarifier aquarium indoor air pump quiet, more stable engine running, suitable for fresh and sea water. 700L/H pump head can reach 0.7m. If you encounter product problems, please contact us in time. Our professional customer service will help you solve your problem quickly
Medium aquarium pool: aquarium pump inject additional oxygen through the oxygen injector, suitable for small and medium pools with water volume up to 175L-250L, aquarium filter pump is not suitable for large volume ponds. The maximum power of the water pump is 10 W, which can save energy and reduce emissions
90° ROTATING FILTER OUTLET With a rotating design, the water inlet is deliberately kept narrow to prevent young animals, shrimp or crabs from pumping into the aquarium filter. Also has an oxygen injector that delivers extra oxygen into the aquarium and creates a healthy environment for fish and aquatic plants
4-in-1 aquarium pump: the built-in filter pump in the aquarium filter continuously water for sterilisation, filtration, water pumping, oxygen increase. The aquarium filter pump is filtered a filter sponge and an organic quartz ball to effectively remove harmful substances in the water and clean the water aquarium

39,99 €
07

OsAtNb

Aquarium UV Light Water Clarifier Algae Clear Green Clean Home UV Steriliser Lamp Kitchen UV Sterilisation Lamp Dog Kennel Bacteria Killer UV Lamp for Filter Tank Pond Swimming Pool 13 W (33 cm

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Warm tips: promise to reply within 12 hours. If you have any questions about the product, please contact us, we will solve it for you.
Warm tips: Please use this UV light in a sump or filter tank. Do not use UV light in your indicator tank and koi pond as this can hurt your fish.
Lamp function: UV light with a wavelength of 254 nm can kill algae and green. Pet house eliminate odours, ensure a clean and healthy living environment for your fish and pets. Diameter of the light tube 1.8 cm, diameter of the blue cover at the end 2.5 cm, 133 cm cable, 220-240 voltage input, 50-60 Hz, power plug with on/off switch.
Easy to use in your filter system: This UV steriliser lamp provides your fish with a clean living environment and can be installed in many types of filters, e.g. Koi pond filter, hand-on-back filter, bottom filter container, sump, swimming pool filter
Application: UVC lamp with 254 nm wavelength and strong sterilisation effect, transfer rate of ultraviolet rays of more than 93%, suitable for aquarium, swimming pool, sterilisation at home, sterilisation in pets, water treatment in industry, biopharmaceutical industry, cosmetic industry, semiconductor/optics, electronics, wastewater treatment and so on.

28,98 €
08

OsAtNb

Aquarium UV Steriliser Light with Timer, Mini Size Home UV Light Disinfectant, Garden Water, Clean UV Sterilisers, Aquariums, UV Lamps, Steriliser for Home and Kitchen, Water Aquariums, Garden Pond

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

【Wide applicability】: UV lamp with strong sterilization effect, UV radiation transfer rate of more than 93%, suitable for aquariums, swimming pools, home sterilization, animal shelter sterilization, industrial water processing, cosmetics industry, semiconductor/optics, electronics technology, wastewater treatment and so on.
★Mini size and submersible: 7.5 cm x 2.2 cm light size has a wide application, fits most aquarium filters and cleans the aquarium water, also perfect for disinfecting dishes phone, shoes, key wallet
Time setting function: updated version with timer (3h, 6h, 12h, 24h), more convenience and intelligence, the UV light turns off automatically after the set time has elapsed
Lamp function: this UV light can kill algae and green, eliminate odour, maintain a clean and healthy living environment for your fish and pets, 3 W 7.5 cm x 2.2 cm, 140 cm cable, 220-240 voltage input, 50 Hz, power plug with switch
Efficient sterilisation: 100% ozone and chemical free – powered by actual UVC light with a wavelength of 254 nm, kills 99% of bacteria in the air; which sterilises and deodorises the room in all directions and has the ability to eliminate formaldehyde / dust mites / odours and .

17,99 €
09

Forever Speed

Forever Speed 5-in-1 Aquarium Internal Filter with UVC Clarifier 3 Watt, Aquarium Filter Pump Including Adjustable Flow 400L/h for 40-120L Aquariums

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Suitable for fresh and salt water: the aquarium filter must be completely submerged in fresh and salt water. The design of the floor vacuum cleaner filters out impurities more thoroughly, and the slim inlet prevents fish from being sucked in so they are safe.
Low noise and easy to install: the aquarium filter pump is equipped with strong suction cups that can be attached anywhere under the water surface of the aquarium. The pure copper motor is more stable and safer in operation, with low noise level, it is the first choice for aquarium filter pumps at home.
Built-in UV cleaner: the aquarium filter is equipped with a 3W UV cleaner that kills some micro-organisms, slows down the growth of algae and inhibits the growth of viruses to achieve a healthy environment. The pump is with the UV timer you can choose 3 different times: 4 hours, 8 hours and 24 hours, depending on the water quality.
Adjustable flow rate/direction of the water outlet: the maximum flow rate of the built-in filter is 400L/H, and the size of the water outlet can be adjusted as needed, and the direction of the water outlet can be adjusted 180° left and right. The water outlet is equipped with a rain shower and an oxygen nozzle, which is decorative and practical.
5-in-1 multifunctional aquarium filter: the multifunctional aquarium inner filter, which combines circulation filtration, sterilisation, oxygen enrichment, rain shower and wave formation, can be used both as a filter for cleaning impurities in the aquarium and as an aquarium oxygen pump to increase oxygen in the water body and create a healthy environment for fish and aquatic plants.

25,99 €
10

Tararium

Tararium Aquarium Filter for 150-560 Litre Basin, Anti Algae U-V Clarifier Internal Filter Submersible Pump 1500 L/h Crystal Clear Algae Killer Water Pump for Freshwater and Saltwater Aquariums

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8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Smells fresh – once the aquarium is full of green, it is accompanied by a smell. This green killing machine can reduce the unpleasant smell in the aquarium.
Separate switches – control the water pump and the lighting of the aquarium separately. If you only want to use the filter function of the aquarium, you can turn off the U-V light of the aquarium separately.
Easy to check light on – you can easily check that the light is on from the outside of the machine, do not need to take the machine apart to see it.
Double filtration – the first stage is biochemical sponge filtration. The second stage is the 254nm wavelength U-V light treatment.
Crystal clear - makes cloudy and green water crystal clear in 3-7 days. The larger the aquarium, the longer it takes. Reduce the number of water changes in the aquarium.
180 DAY WARRANTY AFTER SALE - If you have any questions or problems, please contact the service letterbox on the package. We will reply and solve for you within 24 hours. Weekends or holidays may delay a little.

54,99 €