Originally Posted by
rkpetersen
Instead of Fallback OFF, consider using Fallback ON and manually setting your heaters' integrated thermostats to just a degree or so above your desired tank temp that you're setting with Apex. That way were the Apex to fail and fallback, your heaters will keep the tank slightly warmer than usual (which can also suggest to you that there's a problem with Apex control), rather than letting the temp plummet with Fallback OFF.
I'm not sure I understand your intent with the 'If DisTmp < 73 Then OFF' statement. Is that if the temp probe were to suddenly fail? Or is there some issue with the Apex temp probe that I'm not aware of? (Of all the Apex probes, the temp has been the most consistent and trustworthy in my setup). Although I suppose it could go out. In which case, the approach mentioned above, setting your heaters' internal thermostats just above your planned operating temperature, would also keep bad things from happening. In order to cook your fish, at least two different subsystems would have to fail at the same time. Not impossible, but much less likely.
Regarding the Feed commands, those number are minutes in addition to your feed times. So the total time your heater would be off would be that number plus your feed cycle duration.
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