Yes, I have a 55 gallon fuge full of cheato, sand and some rock. I pump water from the middle compartment of the sump into one end of the fuge. It then overflows from the other end of the fuge and it drains by gravity into the return pump section of the sump. The fuge is full of pods and critters, which occasionally end up in the display tank to my copperband's delight...
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