Nice smooth,straight,square joints can be achieved on a table saw BUT not typically on your homeowner/ contractor grade table saw. There are modifications that can be done to them to stabilize the blade and fence mods which will enable you to rip or cross cut the above mentioned. Really not worth the time for one project. Like others mentioned a router is the best alternative. You can make a squaring jig by cutting a oversize board and clamping it to a table and using it to route by. The larger tanks are made using a two part polymer and then routed to fit and then countless hours of polishing the joint. Museum qaulity displays can be made at home given enough practice and equipment and money. Is it finacially advantageous ? Probably not. Challenging? Yes. Fun ? Depends on the person trying. I enjoy diy projects and have saved an aquarium full of money doing them but I owned all the tools needed already which I use for my trade and had most of the basic skills. I encourage people to try diy as long as they don't expect savings and perfection first or second attempts. I believe that alot of the advancements and or inventions made in the hobby were by diyers so to say leave it to the pro's is a narrowed minded view . Got money, got time ,got the want to, give it a try.
