Hi,
we are building a 1100 litre freshwater planted aquarium for discus fish. We will be using the GHL "ecosystem" of Mitras LX7004, Profilux 4, Doser 2.1, Powerbar etc. The filtration will be a custom-made sump with Red Dragon 3 return pump, which can also be controlled via the Profilux.

My question for the GHL users & support team is: how would you recommend me to set-up a CO2 system for this tank? I assume the CO2 could be controlled by pH meter of the Profilux, but I am not exactly sure how to put everything together and what components I should use? (I've only always had low-tech tanks so this is my first high-tech tank setup).

Any advice would be much appreciated!