Sorry for your loses. We just got thru a 18 hr power outage ourselves. Normally not an issue but this time. The generator would not start and could not find a carberator rebuild kit. Fortunetly I recently installed battery back ups on each MP 40. The wife at the time thought it was a waste of money. After the power came back on and we realized we had no loses she quickly commented that the battery's we're a tank saving idea. As I realized that I should make a maintanace plan for the generator. I.E -- start it every month ! And make sure the fuel is good and run the carberator dry after the test run so it will not gum up. But most of all check the back up batteries to ensure they work as well! !! It does look to most people that battery back up is an expensive addition ,it is a small cost compared to the expense of the livestock we keep and even cheaper if you consider the time you invest in your tank. I am sorry about the fish you lost. You obviously put a huge amount of time in careing for them. A back up plan would have most likely allowed you to avoid the loses you experienced. If I have learned anything this year about the hobby (after the Apex went nuts and ran the heater full blast for 12 hours,which the chiller was able to keep under control !! Luckily ) Is to make sure key equipment is backed up and to install fail safes whenever you can. All the computer control in the world is nice but one little problem like a gummed up carberator can really ruin your day if you haven't considered a back up plan!