Once more I feel that a sticky thread on this topic is critical (I'm tried of rewriting threads on this subject) since the MOST import thing we do is water changes but time after time, people are totally confused on this subject when more than a single W/C is needed!

For a post I made today, I offered a simple three stage W/C procedure and how much new water this would produce - too many people do not understand this very simple concept (the effect of separate W/C on the net clean water added and also the issue of pH drift and how to figure these things out.) I would think that such a post would be useful ...