Yeah... that table cleared everything up. I was just having trouble with the zeros and decimal points but now that I know what my checkers read out as I'm good. My NO3 was very high until I started using NoPox. Now they are in a good place. Unfortunately they haven't done anything for my PO4. I started using Rowaphos again as it did work for me in the past in conjunction with Phosphate-E. My PO4 was so high the checker could not give me a read out. Phosphate-E brought it down after about a month of dosing and then Rowaphos brought me down the rest of the way. I thought NoPox would lower and maintain both but that's not the case. At least for now. I just hate that I have to use so much Rowaphos to make a dent and it gets exhausted weekly. Hopefully it comes down to where I can just change it monthly like ive read others do.