Originally Posted by Wasserpest
CO2 and O2 are not mutually exclusive. Adding CO2 doesn't reduce the O2 content of the water. It does lower the pH
Of course using an Airstone or a HOB filter disrupts the water surface so CO2 is released...
but what if one diffused O2 AND
CO2 into a reactor ??
Would that keep you PH low AND enough O2 to not worry about your fish ever suffocating ??