This is a discussion on 8 Sided tank. within the Freshwater Aquarium Equipment forums, part of the Beginner Freshwater Aquarium category; -->
I have an 8 sided 33G tank. It looks very nice because it has a glass cover and is very deep.
What setup do you wish to keep? A planted tank is great to look at. Use vallisnerias to cover the side and back glasses of the tank. Cabombas, elodeas, hygrophilas and ambulias will also help. Some Nymphaea lotus with red leaves can give a contrast to the green surroundings.