Thank you, Frank, to take the time to answer my questions. My setup is a little different so I can't do everything exactly as you suggested, but I get the basic concepts and can apply them equally as well. It sounds like most of what I'm doing is pretty much on target except I'm going to start leaving the CO2 off for the day when adding new fish. I actually like that idea, and it resolves a concern I've had for awhile.
The tank is looking great, as always! Love the fish! Their color couldn't be more perfectly matched for that tank.