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Best Co2 Fr Aquarium - Holiday Sale

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Last Updated - 16.12.2025

Best Choice

01

JBL

JBL PROFLORA CO2 Regulator Professional, Pressure Control Fitting for CO2 Fertiliser Systems, with 2 Pressure Gauges, Solenoid Valve for Night Shut-Off

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9.7

Exceptional

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Main highlights

Suitable for CO2 disposable and reusable bottles, remove the included U-m adapter for compatibility with disposable bottles
Pressure control fitting for CO2 aquarium plant fertiliser systems, pressure reducer for reducing the bottle pressure from 60 bar to 1.5 bar working pressure for adjustable CO2 supply
High-quality design made of anodised aluminium, precise CNC milling, quiet solenoid valve, reliable sealing disc instead of O-ring
Easy to install by screwing the pressure regulator on CO2 compressed gas cylinder and connecting the solenoid valve to timer or CO2 controller
Box contents: 1x JBL pressure control fitting for CO2 fertiliser systems, JBL PROFLORA CO2 regulator professional, with 2 pressure gauges and solenoid valve, for reusable and disposable bottles (with adapter), item no. 6467200

154,17 €
02

UINCLU

Schwabengase Co2 Bottle 2 kg – Stock Carbonated Cylinder – Property Bottle with Galvanised Tube Carry Handle, Refilled, Carbonated Bottle for Aquariums and Dispensing Systems, TÜV up to 2035* (2 kg)

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9.6

Exceptional

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Main highlights

With overpressure protection: the 2 kg Co2 gas cylinder has a high-quality rotary valve according to DIN 477-1 No. 6 / W 21.8 x 1/14 inch (without RPV) with overpressure protection and thus always allows safe and safe use
Refillable carbonated bottle: handy gas bottle filled with 2 kg of carbonic acid (CO2). Ideal as a CO2 carbonated storage bottle for aquariums, dispensing systems, dispensing systems and drinking water systems
NEW OWN BOTTLE: The CO2 cylinder is brand new and filled. The compressed gas carbonated bottle has a handy, galvanised protective and carrying handle, as well as TÜV until 2032
Highest quality: for our carbonated bottles we use CO2 in high-quality beverage quality and food grade E290 (purity: > 99.95%), bottled in Germany
Cylinder exchange: this reusable carbon dioxide bottle is a property bottle, free for exchange and filling at any exchange point throughout Germany

64,00 €
Value for Money

03

Garosa

Garosa CO2 Regulator for Aquarium, CO2 Bubble Reducer Needle Return Valve Aquarium Accessory (1)

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9.5

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

★Special metal ground surface, light weight, easy to use.
★Ergonomic design, easy to install and convenient to remove.
★ This tool is made of high quality stainless steel material, which is corrosion-resistant, abrasion-resistant, shiny and durable.
★ High quality micro measuring valve for stainless steel needles with high precision, which easily releases CO2 by fine tuning.
★ Different styles to choose from to meet your different needs.

8,63 €
04

ARKA

ARKA mySCAPE-CO2 Checker Liquid - 15 ml - Reliable CO2 Monitoring with Colour Display Essential for Precise Aquascaping in Freshwater Aquariums

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9.2

Excellent

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Main highlights

Universal: the indicator solution is ideal for use with a CO2 test, such as the ARKA mySCAPE-CO2 checker from the ARKA mySCAPE-CO2 system or corresponding other commercially available CO2 testers.
Contents: 15 ml CO2 indicator liquid.
Colour impact: the CO2 test liquid shows the respective status of the CO2 supply in the aquarium using 3 different colours. Yellow = too high, green = optimal area, blue = too low.
ARKA mySCAPE-CO2 REFILLER: A CO2 test liquid with colour change, ideal for use in a corresponding CO2 continuous test, such as the ARKA mySCAPE-CO2 Checker.
ARKA Biotechnologie GmbH has been developing and producing high-quality products for aquariums, pond care, DIY supplies as well as accessories for dogs, cats and rodents for years – known for innovation and quality – made in Germany

5,89 €
05

JBL

JBL ProAquaTest CO2-pH Permanent ProScan Recharge with 24 Water Analysis Strips.

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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

For direct use thanks to the complete set with display container with suction cup, reagents and colour scale stickers, refill reagent available separately for refilling
Displays pH value from 6.4 to 7.8 and CO2 content
Continuous test for fertiliser control: place reagent in permanent test device and attach to the disc in the aquarium with teats, compare the reagent colour with colour scale sticker and read the value
Box contents: 1x JBL water test set, ProAquaTest CO2-pH permanent, includes 1 display container with suction cup, 2 reagents and colour scale sticker
Advanced water test series: simple and safe control of the water values of freshwater aquariums, ideal for permanent direct measurement of the optimal pH value and carbon dioxide content

14,79 €
06

QWORK

QWORK Aquarium Atomiser CO2 Diffuser with Suction Cups and U-Pipe for All Types of Aquariums

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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.

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Main highlights

Very quiet operation: CO2 is added to your aquarium without annoying whistles or other distractions.
Performance The high density aquarium atomizer produces small bubbles, which increases the dissolution rate of carbon dioxide and does not block the aquarium easily.
HIGH QUALITY:CO2 aquarium atomizer made of aluminum alloy, safe, energy saving and environmentally friendly.
Easy to Install The CO2 bubble diffuser is easy to install and easy to use. With two functions for hanging or attaching to the tank wall by suction cup.
Design:Fixed with U-shaped plug, the height can be adjusted freely, and the U-shaped plug tube can prevent blockage of CO2 flow.

6,98 €
07

AQUAbasic

AQUAbasic s Aquarium CO2 Carbon Plant Fertiliser Provides a Visible Growth Spurt of Your Aquarium Plants – Beautiful Plants and Significantly Less Algae, Size: 1 Litre

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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

Supports natural photosynthesis
Reduces algae growth
Provides plants with a carbon source
Ideal in combination with aquabasics plant fertiliser
For strong and beautiful aquarium plants

14,99 €
08

JBL

JBL PROFLORA CO2 Typhoon Glass MIDI

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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

Installation: connect the diffuser with CO2 supply hose (4/6) and attach to the windscreen or on the floor disc with suction cup near the ground
Even flow and effective distribution: special ceramic for particularly small CO2 bubbles, built-in ceramic membrane
Easy to clean: place the complete diffuser in cleaning solution for 24 hours (JBL Proclean Power)
Box contents: 1 glass diffuser, 1 suction cup with clip
Attractive small but very effective glass diffuser for dissolving CO2 in aquarium water for perfect plant growth. 3 sizes: mini 40-120 litres, midi 40-300 litres, maxi 160-800 litres

14,99 €
09

JBL

JBL PROFLORA CO2 TAIFUN COUNT SAFE, CO2 Bubble Counter, Built-in Backflow Protection

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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

Hose fittings prevent accidental loosening of hoses for increased safety
Filling the bubble counter with water, connection with hose to the system/reactor, attachment outside the aquarium
Bubble counter for visibility and counting of CO2 gas, integrated fuse to prevent water return
Box contents: 1x JBL CO2 bubble counter, JBL Proflora CO2 TAIFUN COUNT SAFE, integrated check valve, incl. holder with 2 suction cups/screws, dimensions: 105 x 175 x 40 mm, item no. 6468000
Allows you to increase or decrease bladder count in case of excess or undersupply of CO2 in the water

9,99 €
10

JBL

JBL PROFLORA CO2 Typhoon Glass Maxi

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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

Installation: connect diffuser to CO2 inlet hose (4/6) and attach to the windscreen with suction cup near the ground
Even flow and effective distribution: special ceramic for particularly small CO2 bubbles, built-in ceramic membrane
Easy to clean: place the complete diffuser in cleaning solution for 24 hours (JBL Proclean Power)
Box contents: 1 glass diffuser, 1 suction cup with clip
Attractive small but very effective glass diffuser for dissolving CO2 in aquarium water for perfect plant growth. 3 sizes: mini 40-120 litres, midi 40-300 litres, maxi 160-800 litres

17,70 €