Hi there, looking for some advice from the experts... I've looked around but haven't found exactly what I'm looking for... want to build a 30x30x36 tall stand for a Marineland rimless 93g cube with a corner overflow. My concern is that the standard design (for rectangular tanks) wouldn't be as stable in a square without additional bracing (just seems that way, correct me if I'm wrong); and also, that the 2x6 'joists' in the top corner would get in the way of plumbing the overflow. Can anyone point me toward a simple design? Thanks!