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CO2 replacement bottle 12 gr.
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CO2 replacement bottle for Colombo Basic Set.
Connect the hose to the CO2 container and fill the diffusor by pressing lightly on the dispensing button.
The CO2 will be absorbed slowly into the aquarium water.
The water level in the diffusor will rise gradually as the CO2 is absorbed.
Refill the diffusor when it is 2/3 empty.