As you can see from Luiz Brunner's 12g nano-reef aquarium picture, although it may be small, it's amazing what variety of soft and stony corals one can choose to put into a reef tank of this size.
Smaller tanks make great Do It Yourself (DIY) Projects. They are fun, easy, inexpensive and go together quickly. Just modify the DIY 55g Glass Aquarium Plans to meet your needs. There are a number of Canister and Power Filters and Mini/Nano Reef Tank Lights which will allow you to keep corals in your new tank.
