CO2

Choose a complete aquarium CO2 kit when you want the essential components combined into one convenient planted tank setup.

Complete systems can include a refillable CO2 cylinder, regulator, solenoid, bubble counter, CO2-resistant tubing and diffuser depending on the selected model.

Aqua Zones offers different cylinder capacities and regulator configurations, including single-gauge, dual-gauge and advanced dual-stage options from brands such as WEEK Aqua, Wyin Aqua, ZRDR, FZONE and CO2Art.

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DIY aquarium CO2 kits provide an alternative CO2 supply method for hobbyists looking for compact or economical planted aquarium CO2 solutions.

These systems are different from conventional refillable high-pressure cylinder setups and can be useful where a smaller-scale CO2 solution is preferred.

Always follow the instructions for the selected DIY CO2 system and choose compatible tubing, diffuser, bubble counter and other accessories where required.

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Browse aquarium CO2 cylinders for building or upgrading a refillable pressurised CO2 system.

Aqua Zones offers different capacities including 2L, 3L, 4L and 5L options in steel and aluminium designs.

Choose cylinder capacity according to aquarium size, available cabinet space and desired interval between refills. Always confirm regulator and cylinder valve-thread compatibility before purchase.

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A CO2 diffuser or inline atomizer helps distribute injected carbon dioxide through planted aquarium water.

Choose from ceramic, glass and stainless steel in-tank diffusers, inline atomizers connected to external filter hoses, and external CO2 reactors.

Popular options include products from Aquario, WEEK Aqua, Wyin Aqua, ISTA, Qanvee, ZRDR, SunSun and other planted aquarium brands.

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Choose an aquarium CO2 regulator to reduce cylinder pressure and provide controlled CO2 delivery to your planted aquarium.

The range includes single-gauge, dual-gauge, dual-output and dual-stage regulators with options such as integrated solenoids, bubble counters and fine-adjustment needle valves.

Solenoid-equipped regulators can be connected to a timer for automated CO2 operation according to the aquarium lighting schedule. Always confirm regulator thread compatibility with your cylinder.

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Explore aquarium CO2 accessories and spare parts for installation, monitoring, distribution and maintenance of planted tank CO2 systems.

Available accessories include bubble counters, check valves, CO2-resistant tubing, U-bends, splitters, manifolds, drop checkers, suction cups, O-rings, seals and regulator replacement parts.

These components are useful for upgrading an existing system, replacing worn parts or distributing one CO2 supply to multiple aquarium lines.

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