Alyssa is right. I am more interested now than ever.
I enjoyed learning about Co2 and think that is the route I want to take. I did record audio of the presentation on my Droid to refer back to if needed and the audio pretty decent. If anyone wants it to refer back to as well I am sure I could find a way to copy it for you.
Anthony, you pointed out someone in the group to talk to about Cichlids. Could you refresh my memory as to who that was or point me to him on here?