The CO2 absorbing media changes colour from white to blue when exhausted and on this 4 litre unit for the larger aquarium system the CO2 absorbing media can be purchased separately in 3250g when it’s required, making the ATI refills over 80% cheaper than the competition.
The CO2 removal helps to raise and maintain a stable pH value which is highly beneficial to the overall health of your aquarium improving the corals health and growth being an effective preventative measure at removing airbourne pollutants from entering the aquarium.
You can reduce algae in a natural way by using the Carbo Ex’s connected to your aquariums protein skimmer air intake it will remove the CO2 that algae needs to grow. Without the CO2 algae are unable to Photosynthesize and in this way CO2 comes to a limiting factor for all algae (cyano, hair algae etc.)