Yesterday evening I was at home and I turned on a lamp in the hallway which caused a short electric power faillure for my whole appartment. I immediately panicked because everything fell out of my aquarium. In the end, luckily it only took 5 minutes and I was able to solve it myself. but what if the problem lasts longer? how are you prepared for this? what measures can I take to limit this damage as much as possible in case this might happen again in the future?