Thank you House for repeating what I just said.
. The point is that in a heavily planted low stocked tank, huge water changes and the use of carbon is not necessary. If the water is fine prior to a water change, then why waste time and energy and water? Making fine water more "fine"? Uhh....
What may blow your mind is that I don't even measure my parameters either! Haven't for years! gasp!!! No need to when you know what you're doing and what to look for. You don't have to "go by the book" if you can think and use your common sense.
But, what do I know, right?
Bottom line is that there is more than one way to arrive at the same end point.