Hello, I had a power outage for 1h30min so I am very worried about my fish and a lot of them turned almost white. I would like to know what I could have done better. I took the filter media, put them in the tank and then took a blanket and put it on the tank with a "emergency thermic tent" to keep the tank warmer (it was 19°c in this room). Also I am scared that this happen while I am not home. I live somewhere power outage can happen quite frequently in winter so what if I am not there a weekend or an entire week and there is a power outage so my filter media dry, my tank gets cold (I don't think my heater turned on so I unpluged and repluged it), and my fish don't get oxygen. How should I prepare myself for that?