Absolutely. I have a 5 foot 100 gallon and I made a stand out of 2 X 4's that if I could balance it, I am pretty certain would hold my suburban. Two bys are very strong if they aren't knotty. They hold a lot. Now you are putting one under the other, I only have the one but it has six legs. I don't think you want that but I just did it because I had extra wood lying around. Supposedly the tanks only need support on the ends. I have a pic somewhere of someone using concrete blocks as a tank stand. Only on the ends. absolutely nothing in the middle.