I had a stand built for my tank. It is built with 3/4" plywood (it's for a 72x19 110g tank). The stand is 72.5 x 19.5 and the tank that will be sitting on it is made of half inch glass. This means that when the tank is sitting on the stand, there is a quarter inch clearance on the outside but none on the inside (hope that makes sense). Is this okay?