[chad54827]

I've attached two design plans for a refugium / sump that i am planning on making with acrylic Baffles in a thirty gallon tank, for a 55 gallon display tank. I love the idea a refugium and what is does for the tank (amphipods, copapods, ph balancing etc.) I plan on keeping it on a reverse light schedule from the display and keep a deep sand bed with live rock and macro algae. My question is which design is truly more effective? I realize that a refugium should have slow water movement but my tank only cycles about 500 gph, is that too fast to have an inline refugium? or should i make it separate with a slower pump to it?