underdog - i believe you are correct about the cycle taking longer, because you would be removing ammonia before the bacteria has a chance to convert it. That is why I posted this topic. I don't want to change it too much and lengthen the cycle, but I do not want to do it too little and hurt the fish.
bol - I actually was at thekrib.com earlier and had looked at that chart. I still posted because I wanted some more input instead of just trusting that one source. It was very informative though, I was not away that ammonia was so dependant on pH.
My pH is 7.8, and the temp is at 76 F, so I could probablybe at about .7 ppm max.
So, would I be right to say that I should keep the ammonia under .5ppm by doing the water changes?