Dennerle Carbo Bio Style 120

Dennerle Carbo Bio Style 120

  • Sustainable bio-CO2 fertilisation
  • For aquariums up to 120 litres
  • At least 40 days of steady CO2
  • Overpressure valve prevents too high pressure
  • Stainless steel incubator
In stock, only 18 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 Carbo Bio Style 120 bio CO2-fertiliser system from Dennerle supplies freshwater aquariums up to 120 litres with important CO2. It is ready for operation in just a few steps. CO2 production starts after only 24 to 48 hours. A Bio CO2-diffusor specially designed for low operating pressure ensures fast, effective dissolution of the valuable CO2 in the aquarium water. Thanks to its modern, timeless design, the fertiliser unit also cuts a fine figure standing directly next to the aquarium. A pressure relief valve, pressure-resistant CO2-hose and solid hose fittings ensure a high level of operating safety. The Carbo Bio Style 120 CO2 fertiliser system is designed to be particularly sustainable: The stainless steel reaction tank is refillable and can be used for many years, the CO2 Constant gel consists of 100 % renewable raw materials.

Plants consist of almost half carbon. CO2 is therefore their most important nutrient. It serves as the basic building block of photosynthesis. Because from CO2, water and light they produce their most important building material and energy source: sugar. The "waste material" is oxygen. Without the addition of CO2, the level in aquaria is always too low. Plants therefore grow only slowly or not at all. This in turn means danger of algae problems. Well-growing aquatic plants are the best prevention against algae! Only a regular addition of CO2 creates the natural basis for healthy, strong plant growth, lush green leaves and bright colours. The plants produce more oxygen for the fish, ensure better water quality and actively prevent algae.

The carbon is produced by a 100 % natural bio-reaction. Selected microorganisms, in combination with the CO2 Constant gel developed by Dennerle, supply an almost constant amount of CO2 (per filling) for at least 40 days.


CO2-production of Carbo Bio Style compared to other organic CO2-systems

In conventional DIY Bio CO2 systems, on the other hand, which work with white household sugar, CO2 production usually runs irregularly. It usually starts very quickly, but drops sharply again after just a few days, i.e. too much CO2 is produced at first, and too little later. These systems are therefore less suitable for aquaristic practice.

Carbo Bio Style 120 can be reloaded with the Carbo Bio Depot 120, for a further 40 days after the first reaction has expired.


  • Complete set for even CO2 fertilisation
  • Refillable stainless steel reaction tank with pressure relief valve
  • With CO2 Constant Gel for at least 40 days of constant CO2 production
  • For healthy, strong plants and bright colours
  • Carbon is the most important nutrient for aquarium plants
  • A spare diaphragm is supplied


Dennerle Carbo Bio Style 120
Diameter 105 mm
Height 195 mm

Scope of delivery

  • Carbo Bio Style 120 - Stainless steel reactor
  • Carbo Bio Diffusor - CO2 addition unit
  • Carbo Bio Depot 120 - CO2 Constant Gel
  • CO2 Hose - CO2 Hose
  • Carbo Bio Activator - CO2 Special Microorganisms


Set-Content Carbo Bio Style 120



Dennerle has been operating in Vinnigen since its foundation in 1966 and, after more than 50 years of company history, the building blocks Dennerle relies on is experience. The philosophy behind Dennerle is to create a small and tangible, intact piece of nature, in harmony with the natural environment. That is why sustainability is a company-wide concept and is implemented at every possible point. In order to achieve an ecologically balanced aquarium, Dennerle relies on a system that is based on 5 pillars. Animals, plants, water, substrate and lighting. Dennerle offers the optimum equipment to bring this complex, but not complicated system into harmony.

General information

Item no.
EAN 4001615057751
Weight 0,85 kg
Shipping weight 0,89 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)