I would also buy an alarm module, or make one yourself (an old clock radio and an X-10 unit). I'd use it in particular for temperatures over 81, say.

Programming isn't particularly easy, or fun. Why do you have more than 1 feed cycle, and why are they different? You could put your powerheads on a single switch, and save $$ and effort.

What are your KAL and DCx? I'm assuming they run a Ca reactor and a Kalk reactor?

Whatever you do, make SURE you aren't depending upon this little piece of plastic and electrons to keep your tank from crashing. They aren't infalible.