I've always kept a tank log in an Excel spreadsheet. I have columns for the date, time, Temp, salinity, pH, Orp, Ca, ALk, NO3, PO4 and waterchanges.
I'll have to take a look at what you've done once I get my home computer going again. The motherboard in my home computer got zapped in the 3 or 4 power outages we had in Ogden last week, so I'll be spending my weekend fixing my computer.
Edited by gateb - July 13 2006 at 5:29pm