This is my new 90 gallon build that I am upgrading from my previous 20 gallon nano tank. I was going to start this thread a while go, but I decided to wait until I got to the point where I was waiting for my tank to cycle and then back post. Before I even had a new tank yet, I had a spot picked out for it in my office. I knew the size footprint I could fit in (Length and Width), which allowed me the option of either getting a 75g or a 90g tank. Either way, as the only difference was height (and weight) I decided to start building a DIY stand. Below are the pictures of the frame and the completed stand. As I never build a stand before, I decided to play it safe and sacrifice weight by over engineering it by using 4x4s on each corner and a 2x4 for the middle, rear post. I wanted to leave the front middle open, without a post, so I had enough room to do maintenance in my sump. The final pictures are of the completed stand with my existing 20g tank on top of it.