I am planning on building an oversized stand for my 40 breeder(36w x 18d x 16t) in order to have enough room for my 30 breeder sump/fragtank underneath. I am going to use the basic stand building plans that are on reefcentral and use 3/4in. plywood on top. The stand will be approx. 48w x 26d x 36t so the corners of the tank will not be directly on top of the 2x4 legs. My question is should I run a few extra 2x4's directly underneath the tank edges to help support the tank or should I just go without?