my wife used the spare socket in my extension i use for tank equipment, i switched it off at the mains like i normally do without thinking about it being plugged into my tanks adaptor.
all my equipment was switched off over night for about 15hrs. i realised the next morning when i noticed the room was awfully silent, no filter humming and i tried to switch on the light, then panic hit me.
in a panic i just switched the equipment back on and dumped a huge amount of prime in to try and help, the temp was around the 18 degrees C mark. i didnt want to do a waterchange as i felt it would stress out the fish even more. after this i have realised that Seachem's prime saved my fish.
all survived and are doing well. there is now a ban on using the spare sockets on the extension unless its for more fish equipment.