Holy crap!!!
I'm glad to hear everything is ok! When replacing your heater buy two smaller ones so that if one gets stuck on again it won't have enough power to heat up the whole tank. Say, if you need a 300W heater, buy two 150W instead. I have have had heaters stick on and fry my tank too, not once, but TWICE. I wasn't as lucky as you. No one was upstairs looking out for me!
