I was thinking that I would like to get the same parameters as in my 25 gallon. So as I am doing water changes 5 or less gallons from my 25 and i am going to put it in my 72 gallon. Does this make sense?? I should end up with or very close to the same set up, right? And when I get everything changed over to the 72 gallon I am going to either take all the water from the 25 and put it in or take half out one day and the other half out another day? Is this making sense or am I just wasting my time. I want the same conditions because everything was doing really well in my 25 gallon.