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CO2 Injection

While beginning hobbyists don’t need CO2 injection, many advanced hobbyists do. For a reef aquarium, a calcium reactor, like the AquaMaxx nano calcium reactor, constantly provides major and minor elements for coral growth by melting crushed coral media. In addition to the reactor and media, a CO2 cylinder, aquarium CO2 regulator, and CO2 tubing is necessary.

Some freshwater planted tanks use CO2 injection. While a low-tech planted tank does not use CO2 injection, a high-tech planted CO2 aquarium will use a CO2 system that includes a CO2 diffuser, CO2 bottle, CO2 regulator, and CO2 tubing.

Want to know how to use CO2 injection? Our aquarium experts are available to guide you.

liquidation sale


5 lb. CO2 Cylinder

House Brand (CO2)

5 lb. CO2 Cylinder


Needle Valve For CO2 Regulator



Fluval Pressurized CO2 Kit - 95g
Dennerle CO2 Check Valve



Fluval Ceramic CO2 Diffuser

Coming Soon!

Fluval CO2 Indicator Solution - 10ml
Fluval CO2 Aquarium Indicator Set
CO2-Proof Tubing - Transparent Blue 50 Feet Roll
Fluval Mini Pressurized CO2 Kit - 20 g
AquaMaxx Nano CO2 Regulator



CO2 Quantum Regulator - Dennerle
Primus CO2 Regulator - Dennerle



Tunze CO2 Valve Set
Milwaukee Dual Gauge CO2 Regulator w/ Solenoid

Out Of Stock


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