I have a huge tank with a pacu. I keep my tanks in the garage. She went crazy and broke her heater which shorted out the power in the garage. I was out of town for a day and a half. When I got home EVERYONE was dead. Its been cold and I guess no oxygen and no heat did them in. Now I must start from scratch. Guess I am going to make one of the spare bedrooms a fish-room. I can't let this happen again. It cost a fortune stock all those tanks and now I must start from scratch. Guess I am just lookin for someone to feel sorry for me.