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Aquarium CO2 Systems

Fluval Betta Diffusion Chamber Pad - 4 pk
$3.39 $4.07
Fluval Betta Diffusion Chamber Pad - 4 pk

Ista CO2 External Reactor
$13.95
Designed by Ista, this External CO2 Reactor is ideal to utilize in aquarium setups where carbon dioxide is supplemented. Reactors use agitation to thoroughly mix aquarium water with the CO2 that you are adding, to ensure the gas is evenly distributed.The reliable, sturdy design works externally, optimizing space within your aquarium. Simply inst...

Seachem Glass Slanted Diffuser - 15 mm
$18.26 $21.91
The Seachem Slanted Diffuser is a highly effective way to disperse CO2 throughout your aquatic system. The pollen-style diffuser is compatible with 6 mm (1/4") standard airline tubing and connects directly to CO2 injection systems. The sleek, low profile unit helps to minimize visual distractions within the tank and boasts a 15 mm large surface ...

Seachem Glass In-Line Diffuser - 17 mm
$66.50 $79.79
The 17 mm Seachem Glass In-Line Diffuser is an elegant pollen style diffuser that has been designed for the purpose of maximizing the dissolution of valuable CO2 within the aquarium water. The construction of the device allows for more consistent and rapid dosing of CO2, while simultaneously eliminating the chances of overdosing or CO2 waste. Th...

Seachem Glass Bubble Counting Diffuser - 17 mm
$18.26 $21.91
The 17 mm Seachem Glass Bubble Counter Diffuser is a highly effective way to disperse CO2 throughout your planted aquatic system. The pollen-style diffuser is compatible with 6 mm (1/4") standard airline tubing and connects directly to CO2 injection systems. The sleek, low profile unit helps to minimize visual distractions within the tank and bo...

Seachem Glass Bubble Counter Spiral Diffuser - 23 mm
$18.26 $21.91
The 30 mm Seachem Glass Bubble Counter Diffuser is a highly effective way to disperse CO2 throughout your planted aquatic system. The pollen-style diffuser is compatible with 6 mm (1/4") standard airline tubing and connects directly to CO2 injection systems. The sleek, low profile unit helps to minimize visual distractions within the tank and bo...

Seachem Glass Beetle Diffuser - 27 mm
$18.26 $21.91
The 27 mm Seachem Beetle Diffuser is a highly effective way to disperse CO2 throughout your aquatic system. The pollen-style diffuser is compatible with 6 mm (1/4") standard airline tubing and connects directly to CO2 injection systems. The unit boasts a 27 mm large surface area disc that provides diffusion for large volumes of CO2 gases, helpin...

Seachem Glass Beetle Diffuser - 30 mm
$24.83 $29.79
The 30 mm Seachem Beetle Diffuser is a highly effective way to disperse CO2 throughout your aquatic system. The pollen-style diffuser is compatible with 6 mm (1/4") standard airline tubing and connects directly to CO2 injection systems. The unit boasts a 30 mm large surface area disc that provides diffusion for large volumes of CO2 gases, helpin...

Penn Plax Action-Air Treasure Diver
$18.11
Add the excitement of action to any home aquarium with Penn Plax Action-Air Aerating Plastic Ornaments. Simple to install, these ornaments will require an appropriately sized air pump, as well as a pressure control valve for proper functionality.

Ista Powered Surface Skimmer and CO2 Reactor
$24.42 $29.30
The Ista Powered Surface Skimmer and CO2 Reactor is the ideal addition for any aquarium set up. Providing exceptional cleaning services, this unit is able to dramatically reduce the amount of bacterial film that forms and spreads on the waters surface due to dust, waste, algae and unwanted microorganisms. Reducing or eliminating this film will i...

Ista External CO2 Ceramic Reactor
$26.04
Designed by Ista, this External CO2 Ceramic Reactor is ideal for use in aquarium setups where CO2 is supplemented, to ensure is has thoroughly dissolved before entering your aquarium. Reactors use agitation to thoroughly mix aquarium water with the CO2 that you are adding, to ensure the gas is evenly distributed.The reliable, sturdy design works...

Ista CO2 Indicator - All Angle View
$8.37 $10.04
This CO2 Indicator features an All Angle View so you can regularly and accurately monitor the CO2 level in your aquarium, from any angle! With the reusable color chart sticker, you will quickly be able to know if the carbon dioxide level in your aquarium is at the appropriate level. Most importantly, this Indicator is built with a smart design, ...

Ista CO2 Disposable Supply Set - Basic
$62.78 $75.33
Provide your planted freshwater aquarium with the tools it requires in order to be a thriving, healthy environment. The Basic CO2 Disposable Supply Set by Ista is the ideal system to implement to effectively supplement your lush, aquatic haven with the carbon dioxide it craves. Install this super convenient, and easy to assemble kit and watch yo...

Ista CO2 Disposable Supply Set - Advanced
$80.22 $96.26
Give your planted freshwater the kick-start it needs to be a strong, healthy environment! The Advanced CO2 Disposable Supply Set by Ista is the ideal system to implement in order to supplement your lush growing aquatic haven with the carbon dioxide it craves! Install this super convenient, and easy to assemble kit and watch your plants flourish!...

Ista CO2 Controller with Solenoid, Bubble Counter & Check Valve
$167.40 $200.88
The Ista CO2 Controller with Solenoid, Bubble Counter & Check Valve is ideal for use in any freshwater planted aquarium with a CO2 injection system. This controller will ensure that your lush aquatic paradise will be accurately and reliably dosed with CO2 to promote the healthy, robust growth of your plants. Including a dual-gauge with an ea...

Ista CO2 Controller with Solenoid
$136.71
The Ista CO2 Controller with Solenoid is the perfect complement for your freshwater planted aquarium, and its CO2 injection setup. This controller will ensure that your aquatic haven will be accurately and reliably dosed with CO2, to ensure the healthy, robust life of your plant inhabitants. With a dual-gauge, easy-to-read display you will know ...

Ista 3-in-1 Compact V CO2 Diffuser
$12.21 $14.65
This 3-in-1 Compact V-Shaped CO2 Diffuser performs as a CO2 bubble counter, check valve, and a diffuser - three functions in one! As a diffuser it enhances the contact time between carbon dioxide and your aquariums water, ensuring effective supplementation. As a bubbler, the transparent acrylic body allows you to easily monitor the dosing rate o...

Fluval Pressurized Disposable CO2 Cartridge - 20 g - 3 pk
$22.34 $26.80
3 Pack of 20 g replacement CO2 cartridges. Designed for use with the Fluval Mini Pressurized 20 g CO2 Kit.

Fluval Mini Pressurized 20 g CO2 Kit
$41.19 $49.43
The Fluval Mini Pressurized 20 g CO2 Kit is ideal for small planted aquariums up to 15 gallons. Its 20 gram cylinder will supply 55 refills of CO2. Simple to install and use, this compact unit features a regulator valve which effectively controls CO2 output, and a mounting bracket that secures the CO2 cartridge to the side of your aquarium. Kit ...

Fluval FX Spray Bar Kit
$58.50
Fluval FX Spray Bar Kit

Fluval Diffusion Chamber for Betta Premium Aquarium Kit
$2.15
Fluval Diffusion Chamber for Betta Premium Aquarium Kit