The airpumps are too weak to keep a 75 gallon tank alive even with 2 of them.
They put out 19 gallon of air per hour from each pump. That means each air pump will move much less than 19 gallon of water per hour. It may work on a nano tank.
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They put out 19 gallon of air per hour from each pump. That means each air pump will move much less than 19 gallon of water per hour. It may work on a nano tank.
Sent from my iPhone using Tapatalk