Surprised no-one else has any comments on this. I talked to the guy who made the controller, and you can add a backup 9V to hold time in case of a power outtage. The schedule is downloaded to memory from the network, so when the power came back on it would run correctly, regardless of network status.
Maybe more interest will spark when I get it built and post some pictures and videos
40B High Tech Tank - 10g Shrimp and Moss Tank