I recommend running a sponge filter in your tank or in at least one of your tanks (if you have more than one). It's a simple and very cheap filter that runs on an air pump. You can run it off a normal air pump, and during power outages it can be run on a battery-powered air pump. They are an internal filter so you have to decorate in such a way as to hide them, but the are 100% worth it as a spare filter for situations like these. (I have 7 tanks, and 3 of them run sponge filters in addition to a normal filter)
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Loach count: 21
Baby fish count: 700+ (shelldwellers, gbr, angelfish)