I just didn't want people to misunderstand because there are ways to add O2 without reducing CO2, and ways to reduce CO2 without increasing O2.
No worries Randy, I appreciate the "correction" as even though myself and many others may know full well exactly what I meant, I feel it is VERY important that we are very clear with newer folks to the hobby so there is 0 room for misinterpretation.
Plus I think my favorites aspect of this hobby is that no matter how much you know about 1 area of the hobby and how much of an expert you might be in it, you can still be considered "newb" levels in others. As an example me and fish diseases, LOL if it's not flukes or itch or velvet I'd be on these forums like a newbie, we all have our areas of weakness and that's what makes this hobby great. We are all always learning.