I live in the country and we have frequent power outages. Recently, a wildfire swept through our town, cutting off the power. Luckily my house didn't burn down to the ground, but I was also afraid of losing my fish. I have a 125g freshwater aquarium with 14 corydora eques (rider measles), 14 pink sharks and a few large sharks. dollar plexes. I installed my lines from this pump to two in-line sling filters to allow for O2 infiltration and filter out those power surges. I'm happy to report that after switching to battery power, my air pump ran for about 9 hours before power was restored. I am very happy with the performance of these air pumps and the fact that my fish is breathing.
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