I'm in need of a fast answer if possible. I'm moving all my vivariums to wire rack setups into our dinning room / kitchen area. Taking out the large computer desk. My question is do I need to put some sort of support on top of the wire shelves themselves for the tanks to sit on? Somthing like a 1/4 inch press board or plywood base? I will be putting a 55 gallon, 4 Ten Gallon Verts, 2 Twenty Gallon Longs and two 18x18x24 vivariums on two 48 inch racks.