Tropica CO2 System Bio Refill

Tropica CO2 System Bio Refill

  • Refill for Tropica CO2 System Bio
  • Quick and easy to replace
  • Operation through biological process
  • For approx. 60 days CO2
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CO2 System BIO Refill by Tropica extends the CO2 production of the Tropica CO2 System BIO by approx. 60 days. The application is simple and quick. Tropica recommends changing the activator every 2 weeks or when bubble production appears to have dropped significantly.


  • Refill kit for the Tropica CO2 System BIO
  • Extends the use of the set to approx. 60 days
  • For better plant growth
  • Easy and safe to use


Replenishment with Activator Refill is required approx. every 2 weeks, or when CO2 production has dropped to 5 bubbles per minute.
To add Activator Refill, the water in the bottle needs to be changed an one new Avtivator portion added. The gel-like biomass remains in the bottle.

Add one portion of Activator to 200 ml of lukewarm water at max. 35°C.
Let the mixture sit for 5 minutes and then stir until the activator has completely dissolved in the water.
Then pour the mixture into the bottle.
Insert the seal into the cap with the vent and place it on the bottle.
Attach one end of the air hose to the bottle and the other end to the CO2 diffusor.
Place the CO2 diffusor in the aquarium.
Now wait until the CO2 production starts. Depending on the temperature, this usually takes a few hours.

The set is now installed and with Activator Refill you can produce up to 60 days of CO2.



Aquatic plants originating from the Danish aquatic plant nursery Tropica differ from those from other nurseries by their excellent quality. Extremely high standards and a very varied range of plants make setting up an aquarium or aquascape a very pleasant experience. Healthy water plants are an essential basis for an aquarium that's practically free from algae.

Tropica's well-planned product range is constantly enriched with new innovative aquatic plants. For aquascapers and aquatic plant enthusiasts, plants by Tropica are always a great choice.

General information

Item no.
EAN 5703249000125
Weight 0,51 kg
Shipping weight 0,80 kg

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