You'd be best to choose a pump that is pressure rated since you will have significant head pressure to pump the water upstairs. That would most likely mean you'll need to choose an external pump. There are not too many submersible pumps that are pressure rated. You could choose to just use an oversized pump and sacrifice some of its volume capcity for pressure, but that would be less energy efficient, will produce more heat and more noise. Ideally for a 75 gallon tank, you'll want to have around 250 - 300 gph through the sump.
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I retired and got a fixed income but it's broke.
Ed
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50 gallon FOWLR, 10 gallon sump.
130 gallon reef, 20 gallon sump, 10 gallon refugium.
10 gallon quarantine.
60 gallon winter tank for pond fish.
300 gallon pond with waterfall.
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