i run an
Aquacontroller II. it is a bit old so it does not have all of the web bells and wistles that the newer controllers do. i really like the thing. makes things so much easier to keep track of.
i did loose 90% of my critters a while back when i was on vacation. i had an X10 RF converter go haywire and flood the house with noise. it blocked all commands from the controller. it happened with the lights on, which in and of itself could not be a problem, but it was the blocking of the temp controllers that did it. i was not able to tell if he chiller or the heater was stock on or off. either way the temp went funky and nearly lost everything.
no system is error proof. i honestly have no idea how to safeguard against something like that in the future. not sure if web controll would do anything for this. it would let you know something was amiss, but it took me several days to actually nail the problem down.
G~