Hi Guys sorry new to aquascape and got a question about CO2. I got an internal filter in my aquarium and it's got an air syphon attachment on the outlet of the filter that allows you to attach a tube with small valve to control air intake. It basically defuse oxygen into the tank. My question: Can I use this to defuse my CO2 into my tank by connecting to that and if so can I connect my air pump to it as well and defuse oxygen and CO2 at the same time through this one outlet on my filter ? There is no back pressure and when testing it works well . Lots of small bubbles suspended in my water but can you mix the oxygen and CO2 like this or even defuse CO2 like this. Thanks.