Neptune Apex Graphing

Here is a graph pulled from the Apex controller via the built in web server.  The graph is showing the temp and pH readings.  You can see where I dosed the tank with pH buffer.  Well that was probably not the best thing to do I gave it a little to much but everything looks fine.  Ultamitely I would like to get it at 8.3 but I am going to let this sit for a few days.