I wonder what you guys think of circular reef tanks. I remember I saw one featured in CORAL magazine once and started thinking about them a bit more. A few initial ideas I had:Allow fish to swim unobstructed (good for surgeonfish)Create great gyre flow very easily. Might create a dead spot though in the center of the tank where the rock work is.As long as not too big, could be lit by a single metal halide fixture (tank diameter limited to 24-30” per halide, and the edges will be dimmer)Image ...