I was thinking about putting together a tank system being 30 w x 20 h x 36 d. the back 12" being a sump area with the front 30x20x24 being the main display tank. I was looking for ideas/suggestions on what to do for the baffles and different areas for the sump system. I definitely want enough room for a refugium, but am unsure how to best set this up for flow and filtration. Either having two returns (one on each side of the tank and over flow in the middle) or just one (with overflow on one side and return on the other.) Definitely a glass tank, possibly have the baffles be acrylic.