I'll post a pic later of the "slope front" tank I made. The front slopes from about 6" up, towards the back, so you can look at a downward angle, and see in clearly. Kris & Andres saw that at my house. The base is about 24w x 18d, it's about 18h, and the top is about 24x8. It's great for a vivarium, or reptiles, amphibians, etc.