Well, I may have been a little over-enthusiastic for a 42 day case (an awful lot of fishless cycles want to end at 60 to 70 days it seems) so we'll just have to see how it goes. Its good that you're staying on top of all the parameters so that nothing will go too far wrong on you. That's the only thing really much under our control. The much greater thing is just the bacteria themselves and the filter/flow/media situation they find themselves in and its all more or less out of our control, so we just have to wait it out. WD