Bio-CO2 Pro (up to 33 gallons)

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$118.99 $139.99

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Grow Vibrant Plants with Easy-to-Use CO2

  • Ideal for Planted Aquariums up to 33 Gallons
  • No Refilling High-Pressure Cylinders
  • Up to 30 Days of Reliable CO2 Production
  • Refilling Takes Just Minutes


In freshwater planted aquariums, CO2 systems play a pivotal role in boosting plant growth, particularly for high light plant species that can be more challenging to maintain. The use of CO2 can also help plants outcompete nuisance algae, leading to a less frustrating and more beautiful aquarium. 

The Bio-CO2 Pro system combines the safety of biological carbon dioxide production with the convenience of pressurized delivery. Offering simplicity and unparalleled performance in an easy-to-use format, Bio-CO2 delivers reliable and controllable CO2 through the naturally occurring fermentation process. With safe, low-pressure operation, it is the most secure, simple, and environmentally-friendly aquarium CO2 delivery system available. With less than 10 minutes of maintenance and no pressurized cylinders to refill, you can have up to 30 days of CO2 for your aquarium without leaving home.


What's Included?

Stainless-Steel Reaction Chamber

Adjustable bubble counter with precision regulator

Nano Bubble Diffuser

Pressure Release Valve

Inline Check Valve

Gasket (qty 2)

Airline with gas barrier (5 ft / 1.5 m)

Activator packet

Booster packet

More Information
UPC 015561184601
Instruction Manual Fluval Bio-CO2 Pro 125/250 Manual
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