Best Aquarium Accessories 2026

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Last Updated - 03.02.2026

Best Choice

01

Tetra

Tetra FilterActive Filter Starter with Highly Active Live Bacteria, Supports Biological Activity in Aquarium, Accelerates Degradation of Pollutants, Optimises Filter Cleaning Performance - Various Sizes, 250 ml

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32% Off
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

Promotes good water values and the well-being of the fish.
Optimises the cleaning performance of the filter for clear water.
Maintains a biologically balanced aquarium.
Boosts filtration after filter maintenance and water change.
Accelerates degradation of pollutants, such as ammonia and nitrite.

8,69 € 12,69 €(32% Off off)
Value for Money

02

Tetra

Tetra FilterActive Filter Starter with Highly Active Live Bacteria, Supports Biological Activity in Aquarium, Accelerates Degradation of Pollutants, Optimises Filter Cleaning Performance - Various Sizes, 250 ml

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38% Off
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

Promotes good water values and the well-being of the fish.
Optimises the cleaning performance of the filter for clear water.
Maintains a biologically balanced aquarium.
Boosts filtration after filter maintenance and water change.
Accelerates degradation of pollutants, such as ammonia and nitrite.

7,82 € 12,69 €(38% Off off)
03

Tetra

Tetra AquaSafe (Quality Water Conditioner for Fish-Friendly and Near-Natural Aquarium Water, Neutralises Harmful Substances in Tap Water), Various Sizes, Single, 500 ml, 500 ml

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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

The vital substances contained in iodine and magnesium promote the health, growth and well-being of the fish. The care formula protects mucous membrane and gills with a natural algae extract
The aquarium water conditioner makes tap water suitable for fish and reliably protects fish and plants from harmful substances contained in the water
Tetra AquaSafe neutralises these substances and makes them harmless to fish. It ensures clear water in the aquarium as it promotes the growth of beneficial bacteria. It is quickly dissolvable, acts quickly with long-term effect
Tap water contains heavy metals and chlorine compounds, which can be harmful to fish if concentrated too high. For all freshwater and saltwater aquariums (turn off the protein skimmer)
An optimised vitamin B mix reduces fish stress during aquarium construction, water change and fish transport and thus supports long-term health

6,99 €
04

Tetra

Tetra AquaSafe (Quality Water Conditioner for Fish-Friendly and Near-Natural Aquarium Water, Neutralises Harmful Substances in Tap Water), Various Sizes, Single, 500 ml, 500 ml

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10% Off
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

The vital substances contained in iodine and magnesium promote the health, growth and well-being of the fish. The care formula protects mucous membrane and gills with a natural algae extract
The aquarium water conditioner makes tap water suitable for fish and reliably protects fish and plants from harmful substances contained in the water
Tetra AquaSafe neutralises these substances and makes them harmless to fish. It ensures clear water in the aquarium as it promotes the growth of beneficial bacteria. It is quickly dissolvable, acts quickly with long-term effect
Tap water contains heavy metals and chlorine compounds, which can be harmful to fish if concentrated too high. For all freshwater and saltwater aquariums (turn off the protein skimmer)
An optimised vitamin B mix reduces fish stress during aquarium construction, water change and fish transport and thus supports long-term health

6,29 € 6,99 €(10% Off off)
05

JBL

JBL Replacement Cleaning Magnet for Thickness Aquarium Panes, JBL L Algae Magnet, s

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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

Use: merge magnets from the outside and inside at the top of the aquarium. Cleaning the windscreen from the outside in circular motions
Strong magnets for good adhesion and quick cleaning
Comfortable handling: sturdy handle with recessed grip
Cleaning the aquarium screen without wet hands: magnetic windscreen cleaner for algae removal for windows with 6 mm thickness
Box contents: 1 x JBL windscreen cleaning magnet, algae magnet S, 61291

6,99 €
06

Tetra

Tetra EasyCrystal Filter Pack, Single

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8.5

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 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

Tetra

Tetra EasyCrystal Filter Pack, Single

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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 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.

4,65 €
08

RUIZHI

Aquarium Thermometer, Mini Aquarium Thermometer Digital, LED Display, High Precision Temperature Sensor, Suitable for Freshwater Marine Aquariums

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8.2

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 application: this aquarium thermometer is an ideal tool for monitoring the temperature of your aquarium. The aquarium thermometer can be used for temperature measurement in reptile breeding tanks, etc. It is also suitable for monitoring the temperature of different types of water such as fresh water, tap water, salt water, sea water, etc., to provide the most comfortable water temperature environment for your beloved pets.
Long battery life: the water thermometer is powered by a 3V low-power lithium manganese, auto-sleep design makes the battery durable and durable, lasts up to 5 years. The thermometer is compact and stylish, the body is as thin as 1 cm, easy to use. Note: This product is a one-piece thermometer outside the tank, cannot be put into the water, the battery is not removable. If you have any questions, please contact us.
High-resolution LED display: the aquarium thermometer has a large LED display with high brightness and easy readability. Touch the control switch, after displaying the accurate data, the aquarium thermometer will go to sleep after 5 seconds, and can be easily woken up by touching the power button, which is more environmentally friendly and energy-saving.
High precision temperature sensor: aquarium thermometer with built-in nickel-plated copper temperature sensor, accurate and sensitive, our aquarium temperature range is 0℃~60℃, accuracy is 0.1℃, error ±0.5℃, update rate every 5 seconds, can detect temperature changes faster, provide real-time temperature monitoring.
Easy to use: the digital thermometer for fish tanks is easy and convenient to use. The back of the aquarium thermometer is 3M waterproof PVC adhesive, tear off the tape and stick the thermometer on the outside of the aquarium under the water level. No probes, no messy wires in the water, providing a clean and safe environment for fish.

6,99 €
09

Tyqour

Tyqour Pack of 2 Landing Net Aquarium Fish Net Mini Aquarium Landing Net Small with Extendable Metal Handle, Shrimp Catch Net Fishing Net Small Aquarium Landing Net for Fish Tanks Small Ponds Pools 8

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14% Off
8.1

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

Versatile use: our landing net pond set is not only suitable for catching fish and shrimp, but also for cleaning aquariums and ponds. Effortlessly removes food residue and dirt.
Practical 2-in-1 set: includes a large square (8 x 8 cm) and a round (10 x 10 cm) aquarium landing net. The mini fish net with telescopic pole can be up to 48 cm long and up to 20 cm short. Ideal for landing net pond, aquariums and small pools to catch fish or remove dirt.
High-quality materials: our landing net aquarium set is made of durable stainless steel and fine polyester fabric. The aquarium fish net is corrosion resistant and gentle on fish and shrimp.
Ergonomic handle: the stainless steel handles of the landing net aquarium are lightweight and durable. Perfect for precise catching and easy handling without damaging the delicate scales of the fish.
Easy storage: the practical hanging holes can be hung up the aquarium fish net after use to save space. Easy to clean and store in a ventilated place.

5,99 € 6,98 €(14% Off off)
10

Hobby

Hobby marble cave

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22% Off
7.9

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

Promotes natural behaviour – this special aquarium cave is ideal for hiding, climbing and exploring and thus promotes the natural behaviour of your little ones.
Optimal retreat – high-quality resin cave as an ideal retreat for dwarf cichlids, catfish and shrimp - ensures safety and reduces stress of your aquarium inhabitants.
Natural aquarium accessories: the subtle marbled look blends harmoniously into any aquascape and creates a natural environment for dwarf cichlids, catfish, shrimp and other aquarium inhabitants.
Expertise – As a family-run company in the 3rd generation, we can rely on 75 years of experience and support you as a reliable and innovative partner in aquariums.
Easy placement – with compact dimensions of 7 x 6 x 5 cm, flexible positionable, stable in water and without affecting water quality or clarity - ideal for small and large pools.

3,79 € 4,89 €(22% Off off)