10 Best aquarium 400 ltr in Deutschland

Advertising Disclosure

Last Updated - 28/04/2025

Best Choice

01

Tetra

Tetra Aquarium External Filter EX 1000 Plus - Powerful Filter for Aquariums up to 300 L, Creates Crystal Clear Fish-Friendly Water, Indoor

Show more
9.9

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.

Show more
Main highlights

With suction aid for quick start of the filter, valves for precise regulation of water flow and pre-filter function to reduce maintenance effort
Rotatable connection valves for easy alignment of the hoses and continuous regulation of the water flow (max. 1150 l/h flow rate pump / max. 540 l/h flow rate during operation)
Particularly powerful, energy-efficient and quiet. Easy and convenient cleaning of filter materials thanks to quick-release valve
Immediate commissioning thanks to extensive scope of delivery, including all filter materials. Suitable for aquariums from 150 to 300 litres
Creates crystal clear and fish-friendly water for a fascinating aquarium experience. Safely breaks down excess nutrients and ensures a permanently good water quality

74,95 €
02

Tetra

Tetra APS 400 Aquarium Air Pump - Quiet Diaphragm Pump for Aquariums from 250 - 600 L, black.

Show more
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.

Show more
Main highlights

Very quiet operation due to innovative pump design, strong housing wall and special, vibration-absorbing rubber feet.
Pleasantly quiet running due to sound-absorbing chambers.
Exceptional quality and reliability.
Consistently high air flow due to powerful, durable diaphragm.
Air tap for controlling the air flow is enclosed in the packaging.

39,97 €
Value for Money

03

Tetra

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

Show more

35% 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.

Show more
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 € 34,29 €(35% Off off)
04

DBREAKS

DBREAKS 5-in-1 Aquarium Inner Filter, 400 L/h Aquarium Filter Pump, 4 W Aquarium Pump with Filter, Adjustable Aquarium Filter with 3 W UVC Lamp and Timer Adjustable for Aquariums

Show more
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.

Show more
Main highlights

Triple filtration: the 5-in-1 aquarium inner filter provides comprehensive triple filtration: mechanical, chemical and biological cleaning. The activated carbon sponge removes unwanted odours, while the organic ceramic balls sustainably improve water quality. This keeps the water fresh and clear, ideal for the well-being of your fish.
Quiet and easy to install: the aquarium pump with filter works quietly and reliably, so that your aquarium always works in peace. With strong suction cups, the filter pump can be easily attached under the water surface. The robust copper motor ensures stable operation, ideal for a quiet and clean aquarium environment.
Multifunctional 5-in-1 aquarium inner filter: This powerful 5-in-1 aquarium inner filter offers everything your aquarium needs: circulating filtration, oxygen enrichment, waving, sterilisation and algae removal in a single device. The aquarium filter pump ensures efficient water treatment and creates a healthy environment for your fish and plants. Enjoy clear, fresh water that your aquarium inhabitants will love!
Built-in UV cleaner: thanks to the integrated 4 W UV cleaner, the aquarium pump with filter helps to kill harmful micro-organisms and inhibit the growth of algae. The UV timer offers three adjustable time options (4, 8, 12 or 24 hours) to optimise water quality as needed. Create a healthy living environment for your aquarium inhabitants - without chemicals!
Adjustable water flow: the aquarium filter pump has an adjustable water flow of up to 400 L/H, so you can adjust the water circulation according to your needs. The direction of the water outlet can be rotated 180°, and the water jets can be easily adjusted to create the perfect flow for your aquarium. Ideal for fresh and salt water pools

25,99 €
05

JBL

JBL ProTemp Adjustable Heater for Freshwater and Saltwater Aquariums

Show more

20% Off
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.

Show more
Main highlights

TÜV tested, waterproof up to 100 cm, shatter-proof quartz safety glass with protective basket, automatic safety shut-off when water level falls.
Precise temperature setting: Dial for temperature selection from 20 - 34 °C, control accuracy +/- 0.5 °C, optimal temperature transfer: Ceramic star-shaped heating element.
Heater for optimum temperature control of aquariums with 50 - 160 L capacity (60 - 100 cm length).
Easy to install: Insert the heater into the protective basket, select the temperature on the dial, immerse in the aquarium, attach with suction cups to the internal aquarium pane.
Box contents: 1 x JBL ProTemp S100 safety adjustable heater with protective basket, 100 W, 60423.

27,55 € 34,45 €(20% Off off)
06

Tetra

Tetra FilterJet Aquarium Internal Filter, Powerful Filter with Oxygen Enrichment, Mechanical and Biological Filtering, Various Sizes

Show more

29% Off
8.9

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.

Show more
Main highlights

Suitable for aquariums with a volume of up to 120 L (also ideal for aquariums with shrimp), easy installation with sauna bowls or hangers
Quiet, powerful aquarium filter with a water flow of max. 400 litres per hour - thorough cleaning with a combination of mechanical and biological filtering
Mechanical filtering: cleans the water of coarse dirt (e.g. slug, algae and dead plant parts)
Individually adjustable: adjustable venturi valve for oxygen enrichment and adjustable outlet nozzle for optimal control of water circulation
Biological filtering: nitrifying filter bacteria settle on the substrates of the filter and break down harmful ammonia as well as nitrite to nitrate

18,79 € 26,79 €(29% Off off)
07

fishkeeper

fishkeeper Aquarium Filter, 6 W Adjustable Flow 400 L/H Aquarium Pump with Filter, Triple Clean Aquarium Internal Filter for Small Aquariums up to 200 L

Show more
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.

Show more
Main highlights

Package and Customer Service The package includes the filter itself, an air hose, three filter sponges, one activated carbon and a manual. With a one-year warranty, the professional customer service team responds quickly to provide users with a long time of peace of mind. Whether it's a problem with the use, installation or maintenance of the product, fishkeeper provides timely and effective support to ensure user satisfaction.
Oxygen Feed with Separate Hose Connection: Unique oxygen supply function allows the user to easily supply oxygen through a separate hose connector to increase oxygen levels in the aquarium. This innovative design combines the two functions filtration and oxygen supply, providing the user with a more comprehensive experience in aquarium management.
Excellent Filtration Efficiency The aquarium filter uses a three-layer filtration design, including high efficiency filter cotton wool and activated carbon to ensure that the aquarium water is always clear and transparent. The multi-layer filtration guarantees relatively comprehensive pollutant filtration for the aquarium, ensures excellent water quality in the aquarium and promotes the healthy growth of fish and aquatic plants.
Energy-saving and efficient: 6 W aquarium inner filter, which provides maximum height of 0.7 m for the aquarium to strong water flow, effectively promote the circulation of oxygen in the water, the maximum flow rate of 400L/H water pump to ensure fast circulation of the water body, and effectively maintain stable water quality. Meet the maximum size of 200L aquarium daily filtration cleaning and water circulation.
Aquarium filter pump: each layer of the filter part can be disassembled and cleaned individually, disassembled assembly is also easy and convenient, suction cups can be installed anywhere you want to install, it is recommended that the filter is carefully cleaned to make the product cleaning effect is more durable. The appearance of the submarine shape design, very trendy novelty accessories are complete.

25,99 €
08

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

Show more
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.

Show more
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 €
09

FEDOUR

FEDOUR Thickened Glass Aquarium Heater: 400 W Powerful Aquarium Heating Rod with Controller, Adjustable Aquarium Heater for Saltwater/Fresh Water, for 140-350 L Aquarium, Turtle Tank

Show more
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.

Show more
Main highlights

[Upgraded External Temperature Controller] Compared to conventional temperature controllers in the basin, this aquarium heater has an external controller to adjust the temperature. This makes the heater easier to operate without having to wet your hands. Temperature setting range: 20-34°C / 68-93°F
[Automatic temperature stabilization] When the temperature in the aquarium reaches the set temperature, the submersible heater for aquariums automatically switches off and the indicator light goes out. When the temperature sensor detects that the water temperature drops, the aquarium water heater starts to work automatically and the indicator light (orange) lights up.
This FEDOUR 400W aquarium heater is recommended for use in 140-350L aquariums/turtle tanks. It is 27 cm long, rust-proof and corrosion resistant and can be used for saltwater/fresh water, with a wide range of applications.
Durable and reliable material: thickened real 2 mm glass tube, the diameter of the aquarium heater is 2.8 cm and is therefore thicker than ordinary glass heaters. 10-slot multi-branched heating wires structure can make the temperature distribution more even.
Complete accessories: After receiving the package, you will receive FEDOUR 400 W adjustable aquarium heater with 1.75 m power cable and external controller, 3 suction cups for attaching the heater, 1 thermometer strip to check the water temperature, 1 floor protection cover to protect the heater and your beautiful fish.

22,98 €
10

AquaOne

AquaOne Aquarium Filter CHJ-1502 I Internal Filter for Aquariums up to 500 Litres I Pump with 1500 L/h Flow I Aquarium Filter for Freshwater and Saltwater Basins

Show more
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.

Show more
Main highlights

Your trusted partner: As a long-standing aquarium, pool and pond retailer, we advise you on all topics at any time. Don't be afraid to write to us :)
Suitable for freshwater and sea water aquariums: the aquarium filter pump is pressed against the window with four suction cups in the aquarium. You can adjust the filter continuously and thus regulate the amount of water.
Highest quality: our CHJ-1502 aquarium pump is suitable for pools up to 500 litres and has a flow of max. 1500L/H
Family companies from Worms: aquariums, pool and garden ponds are our life! It is very important to us that we can also use our products ourselves. That's why expertise is very important to us.
Advantages: the filter is very quiet and very energy-saving due to the low power supply.

29,95 €