Help with return pump


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Oyster Bay L.I.
I'm redoing my sump and want to change to an external return pump. I have a 90 gal sump in my basement and the water must go up about 10 feet before reaching the display. Tank is a 56 gal column reef. I'm not sure how to figure out how much flow I need at that head height. Any recomendations? Must be reliable and NOT LEAK. Thanks