"...since you are using a GFCI outlet/breaker (you are using one right?)"
No I'm not actually, you called me out. I did install them in my kitchen and bathroom and I did read several advisories to use one for aquariums but I just ignored it. I do use drip loops though. You did however inspire me to search for these things which are about the same cost as the hardwired versions so maybe I'll budget this in for all my aquariums: http://www.amazon.com/TRC-90033-Shoc...ords=gfci+plug
But this thought is a total drag since I have 6 aquariums. Thanks a lot.
I think the timer you posted is something like what I will have to go with, WalMart also has some analog timers with the plug coming straight down from the bottom which I might go with but I was hoping to find digital ones with battery backup.
What would be ideal is one timer that controls 4-6 outlets independently. Why does this not seem to exist?
You could also use a GFCI breaker, if all or several of your aquariums are on the same breaker. A GFCI breaker will protect all outlets on that breaker/circuit, so depending on how your house is laid out that might be good or bad, sometimes it can lead to false tripping if you are using certain types of appliance on the same circuit.