Hey guys, i was thinking about how i could set up a sump/refugem for my 10g. I was wondering how i could do this with having the sump/refugem on the floor about 3 feet lower than the display tank. If i get two powerheads with the same gph rating and have one pumping out of the tank to the sump and then another pumping from the sump to the main tank will they stay at equilibrium? Or does the pump in the refugem have to be a higher rating because it has to fight the force of gravity? Any input/examples on how i can accomplish this would be sweet.