This is an excellent description of what to do. Very clear. I did have one question, though, regarding
In about 3-4 weeks you will probably want to start replacing some of the fast growers with more desirable plants.
Is it better to go for the gusto at this point and do all of the aquascaping and replacing of the fast-growers with other plants? Or is it better to only replace a few at a time over a period of weeks until the desired aquascape is achieved?