My parameters seemed alright this morning but I think you are right with needing to focus on water quality, NH3 0.03, NO2 0, NO3 0. Currently the only media I have for the filter is the Ecoclear filter pad that came with the filter. I feared that it would remove the kanaplex so I removed it. I think having a better understanding of how filters actually work would be helpful because if I can get the tank cycled then I could do another round of Kanaplex within a week because so far he seems to be improving and I think getting the tank cycled as you say may help with that.