I have a 55g with a pair of severums that will eat or destroy any live plants in a matter of days. I was thinking of running the outputs from my ugf powerheads into tubing to a 5g acrylic above the tank to use as a fuge to scrub excess nitrate product of the ugf. Do you think the powerheads would be able to lift the water 1' above the tank and should I do a sealed system or just make a couple of gravity spillways back to the tank? The powerheads are AC 20's I believe.