Thanks for the welcome AK, I'm no expert but I use Excel for just about anything where I need to remember stuff (like bills).
I atually have it plotting the test results on a line chart, doesn't add any more info but does show the relationship between the levels of Amm, Ni and Nitrates (at least I'm hoping it will by the time the tank has cycled)!
I atually have it plotting the test results on a line chart, doesn't add any more info but does show the relationship between the levels of Amm, Ni and Nitrates (at least I'm hoping it will by the time the tank has cycled)!