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Best Aquarium Filter - Holiday Sale

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Last Updated - 16.12.2025

Best Choice

01

JBL

JBL External Filter for Aquariums

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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

TÜV tested, safe and energy efficient: Less power consumption than previous generations for consistent performance.
Fully equipped and ready to connect: Built-in quick start device, filter start without water suction. Easy assembly.
Extreme smooth running at pump performance. Patented new pre-filter system with 100% more surface area than the model 401. High biological filter performance, hose connections rotated 360 °, easy to change filter compounds.
External filter for clean and healthy aquarium water: Closed water circulation system for aquariums
Box contents: External filter system for aquariums, CristalProfi greenline, incl. Hoses, suction basket, angle, suction holders, filter masses (bio-filter balls and bio-filter foam).

99,99 €
02

JBL

JBL CristalProf i80 greenline 6097200 Energy Efficient Internal Filter for Aquariums with 60–110 L

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9.6

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

TÜV tested, completely submersible, high energy efficiency and power saving: 4 W power consumption 63 percent savings, motor technology, maintenance-free pump: Permanent circulation, adjustable power: from 150–420 l/h.
Modular structure: Can be extended as desired, water outlet pipe rotates 90°, large filter volume, suction holder with mechanism for releasing, emptying the filter: Dirty water does not get into the aquarium, use of all filter compounds possible, elegant corner shape.
For clean and healthy aquarium water: Internal filter for mechanical and biological filtering – for aquariums from 60–110 litres (60–80 cm).
Contents: 1 x JBL Christal Profi i 80 greenline, internal filter for aquariums, 60972, dimensions: 8.5 x 8.5 x 22.5 cm.
Completely ready for connection and equipped with filter masses: Connection of wide jet nozzle or nozzle jet tube to filter, placement of the filter in the aquarium, connection of the power plug.

32,99 €
03

Tetra

Tetra IN Plus aquarium inner filter - filter for clear, healthy water, easy care, mechanical, biological and chemical filtering, various sizes., Single

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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

With practical filter medium removal device for clean handling
When cleaning, the device remains in the aquarium
This means that a filter sponge can always remain in the filter chamber during cleaning - the loss of beneficial bacteria is thus minimised
Note: The cleaning interval depends on the trimming of the aquarium and must be adjusted if necessary.
Continuous flow speed control to adapt to the aquarium
All internal filters have two-part filter chambers

21,99 €
04

Juwel Aquarium

Juwel Aquarium - Bioflow Internal Filter System One - Suitable for Aquariums up to 40 cm Height, up to 80 Litres

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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

Powerful Bioflow internal filter
Internal filter for aquariums up to approx. 80 litre volume
Includes Juwel Eccoflow 300 pump

19,99 €
Value for Money

05

Aquael

Aquael Pat Mini 5905546061339

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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

Only 4 Watt power consumption
Includes nozzle for oxygenation
400 litres per hour of circulation

13,95 €
06

Tetra

Tetra EasyCrystal Filter Pack, Single

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9.0

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

The filter cartridge ensures crystal clear, healthy water.
Tetra EasyCrystal Filter Pack 250/300.
Suitable for both the EasyCrystal Filter 250 and the EasyCrystal FilterBox 300.
Intensive mechanical and biological filtering.

4,89 €
07

flintronic

flintronic Aquarium Filter, 4 W Aquarium Pump, Aquarium Inner Filter, Adjustable Aquarium Inner Filter with Small Brush, 300 L/H Water Pump, Flow Aquarium Filter with Water Pump for 60 L Aquarium

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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

Rain/water hanging design: the water spray mode presents a beautiful rain/water curtain scene. Note: Avoid excessive water flow that could affect the life of the fish.
Important note: the minimum water level is not less than 5 cm and the suction cup can be attached to the glass surface. Please check and clean the filter parts regularly, once a month is recommended. The filter effect will be better after cleaning.
Easy to assemble and clean: the aquarium filter pump is equipped with a suction cup that allows you to attach it to the wall and bottom of the aquarium. The filter element can be easily disassembled and assembled. A small brush included helps you clean the interior of the spray rod easily.
4-in-1 installation: our small aquarium filter can be installed in 4 ways (see the photo for more details). It can be used as a water filter to clean impurities in the fish tank or as an oxygen pump for the water tank. Contact the air hose to increase water oxygen and create a healthy environment.
300L/H adjustable water flow: the adjustable design helps to adjust the water flow speed. The oxygen hose is also equipped with an air flow control valve.

9,34 €
08

Tetra

Tetra EasyCrystal Aquarium Internal Filter - Filter for Crystal Clear Healthy Water, Easy Care, Intensive Mechanical, Biological and Chemical Filtering, Various Sizes

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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

Tetra EasyCrystal FilterBox 300 with 2 replacement filter cartridges – Tetra HT 50 aquarium heater.
Space-saving compact housing; mouse background image (two motifs) plus informative booklet and feed sample.
LED technology, including day and night light.
Complete aquarium set, especially suitable for children.
Box contents: Tetra EasyCrystal aquarium internal filter for crystal clear healthy water; easy care: no wet hands when changing filters; intensive mechanical biological chemical filtering.

25,00 €
09

Fluval

Fluval U Internal Filter

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8.4

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

The media cartridge catches more dirt.
Flip-top lid allows quick and easy access to the filter cartridge.
Easy-grip water control paddle.
Designed for aquariums up to 55 litres (1.5 US gallons).
BioMax biological media included.

29,99 €
10

OsAtNb

Quiet Aquarium Internal Filter 4-in-1 Aquarium Filter, 500-1800L/H Aquarium Filter with 2 Filter Sponges, Water Pump, Oxygen Ventilation, Wave Maker for 20L-1500L Aquarium (6W 500L/H)

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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

【Product Parameters】 Power: 6W, Maximum flow rate: 500L/h, Maximum lifting height: up to 0.8m, Length of power cord: 1.1m.
【Multi-function Free Switching】This filter has 3 types of water outlets. You can easily switch the oxygen and filtration increase, the wave maker pump, water change and the pump water function
Wide applications: This extremely quiet filter water pump for a tank of 20 to 400 litres offers a wide range of applications that can be used in aquariums, ecological tanks, brood ponds, landscape tubes, gardens, rock garden fountains, waterfalls and hydroponic systems. Irrigation systems, etc.
Submersible pump function: IP68 waterproof and electric leakage prevention, can be used as a submersible pump with an outlet diameter of 16 mm and is compatible with most hose calibers.
Effective filtering: Increase the size of the filter box and install 2 pieces of biochemical sponge, which can effectively filter waste and improve the circulation system to maintain a clean water environment. Easy to separate and clean.

18,99 €