Hi, first time poster. Here's the scenario. In a given vessel containing a given amount of water at a given temp, gases from the air will reach equilibrium with those dissolved in the water contained in the vessel. Now suppose live plants are added to the water. During the day, photosynthesis will occur, which will skew the relative ratio of O2 and CO2 in the water towards the O2. If while this is occurring, atmospheric air is diffused into the water via an airstone powered by an air pump, what will be the effect on the ratio of CO2 to O2? It seems obvious to me that under these circumstances that aerating the water will increase the level of CO2 dissolved in it, however marginally. Is this correct? Thanks!