lucky to have a backup heater

[Lampshade]

I lost 90% of my 55 gallon to a bad heater, it's a shame we spend so much on skimmers etc and it ends up being one of the cheapest parts that nukes the tank. I have 2 fail safes now though, heater is on temp control and I have my controller to shut it off if the tank is over that temp. It also emails if the temp is above/below my set points. Silly heaters.. fool me once, shame on you, fool me twice.... NOT GOING TO HAPPEN.

Glad you caught yours in time, temperature swings can really hurt.