I built a tank several years ago (20) and after a few years it began to leak and before it was noticed it was too far gone. Anyway, my stand isbuilt out of 2x4s and 2x6s, the tank is plywood but with an exterior frame. The tank measures 96Lx36Dx31H outside and 88Lx28.5Dx28.5H inside. I will be using 5/8s glass on the front and will be using Pond Coat to seal the tank. Here is the stand and tank so far: