i seen a airpump other day was pretty cool ive used the battery powerd ones befor no prob. but i found oen u plug in but takes batterys also when power go out it come on by its self
Plants are a good idea if you can keep light on them during a power failure. Plants take in oxygen and give off carbon dioxide in their night cycle. The amount of plants needed to oxygenate a tank containing large fish would pose a greater risk for losses during power failures.