I'm thinking 24x24x36, maybe a little bigger or smaller. its going to be a long term project, and just coming up with some ideas at this point. I figured plexiglass would be easier to cut and drill. Budget is not a huge concern but I don't have loads of money to drop on it, but I was going to investigate the cost of some materials and go from there. I want to make a really nice detailed display tank I'm thinking for a group of Grey tree frogs