The two feed programs would be 1 for feeding and the other for photography

I plan on running both the calcium reactor and kalk reactor at some point. Not sure if I will need them both initially. Have them both but my current tank is too small so just the kalk is being used now.

I have 2 aqualifter pumps available. 1 is for running though the kalk reactor and the other is for just topping off with straight RO (bypassing the kalk reactor) if needed. Also the stiring pump for the kalk reactor.

Am I putting too many variables into dosing the tank?

Good idea on putting all the powerheads on the same switch. I should be able to get away with running these via X10.

I'll definitely look at an audible alarm. I'm going to put together a website too so the status can be checked and controlled via remote. Maybe later ad a tank cam.

This is going to be COOOL! (just hope it works as planned) I love technology and all things fish.

joelb, the tank will be in the kitchen - in arms reach of the fridge. Not too far from the master bedroom. ---- heaven.