I want to remove CO2 from one of my tanks as I no longer require it. Should I just remove it and dial back the lighting, or gradually reduce both?
Either way is fine, but to avoid shocking the plants - leading to dieback and potential algae source - I'll just dial it back, starting off with the lighting.
Ouch. Then I'll just dial back the CO2, and depending on the duration light is on, turn that 'back' as well.