I bought this portable oxygen pump to keep my 35 gallon tank going during a power outage and I've been happy with it so far (we got the power in a hour restored ). It has two outlets so I was able to install pipes and an aerator on each side of the tank and they created adequate circulation in the water. I am thankful that I have something that can be charged in different ways. Only time will tell how well this machine performs during extended outages; Until then, I'm glad I have a backup.
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