Fluval Bio Co2 Pro

Fluval Bio Co2 Pro

  • Biological CO2 production, easy to maintain
  • Safe low-pressure operation, environmentally friendly
  • Up to 30 days CO2 supply
  • High-quality steel construction
  • Customisable and accurate CO2 supply
In stock, only 2 left
Free shipping on orders over € 60,- within Germany Change region
Express delivery possible
1-3 business days - order today and we’ll deliver next week on Monday at the earliest
I want to order to 
incl. VAT
free Shipping
Item is now in your shopping cart!
View my cart

Item question

We’re here for you!

Please enter your question and e-mail and we’ll contact you as soon as possible. It usually takes us up to 24 hours during business days to respond.

Thank you for your question!

Thank you, we’ll get in touch!

Close window

You already sent us a question.

Please wait a few minutes


The Fluval Bio-CO2 Pro is an innovative solution for CO2 supply in freshwater aquariums. This system combines the safety of biological CO2 production with the convenience of pressurised supply, making it an ideal choice for aquarists who value ease of use and efficiency. The Fluval Bio-CO2 Pro provides a convenient CO2 supply in four easy steps and requires only about 10 minutes of maintenance per month. By using sustainable materials and eliminating the need for high-pressure cylinders for refilling, this process is both safe and environmentally friendly.



The system operates at low pressure (maximum 1,3 bar), which is a much safer option compared to conventional pressurised systems (55 - 80 bar). An expensive pressure reducer that lowers the working pressure is not necessary when using Bio-CO2. In addition, an integrated pressure relief valve guarantees additional safety during operation. The high-quality steel construction, the 100% silicone seal, which prevents CO2 from escaping, and an adjustable bubble counter with precision regulator and nano bubble diffuser ensure an accurate CO2 supply. Each model of the Bio-CO2 Pro produces up to 30 days of reliable CO2 production using sugar and yeast as renewable and environmentally friendly raw materials with high sustainability.


  • Simple and safe CO2 supply
  • In just four steps and with less than 10 minutes of maintenance per month
  • Use of sugar and yeast for environmentally friendly CO2 production
  • Up to 30 days of reliable CO2 production per charge
  • Made of stainless steel with 100 % silicone seal
  • With adjustable bubble counter and precision regulator

Technical data

Fluval Bio CO2 Pro - 125 l
CO2 supply (monthly) 90 g / 46 l
Yeast packets required (monthly) 1
Booster tablets (monthly) 1
Ideal bubble volume 12 bubbles/min
Fluval Bio CO2 Pro - 250 l
CO2 supply (monthly) 180 g / 92 l
Yeast packets required (monthly) 2
Booster tablets (monthly) 2
Ideal bubble volume 24 bubbles/min


Fluval Bio CO2 Pro - 125 l
Height 215 mm
Diameter 110 mm
Suitable for aquariums Up to 125 l
Fluval - Bio CO2 Pro - 250 l
Heigth 325 mm
Diamter 110 mm
Suitable for aquariums Up to 250 l



Since 1975, Fluval has been offering advanced aquarium technology such as filters, lighting solutions and complete aquarium systems with a high degree of quality and innovation. Fluval's pioneering spirit is reflected in constantly modern products that meet the changing times and fast pace in the field of aquaristics with functionality and robustness. Fluval is not only committed to the much-loved hobby of aquaristics, but also to the preservation of the environment through coral conservation projects, species protection programmes and also works in a close context with the aquaristics community.

General information

Item no.
EAN 015561184632
Weight 0,80 kg
Shipping weight 0,97 kg

Customers ask customers

You have questions about this product? Ask other customer or our support team about this product!

Customer reviews

This item has not been rated
Please sign in if you want to write a review. Sign in
5 Stars(0)
4 Stars(0)
3 Stars(0)
2 Stars(0)
1 Star(0)