The rule of thumb is one fish per gallon of water. Of course, this depends on the fish size, and larger fish will require more than one gallon of water per fish. Aquariums are designed either vertically or horizontally. Vertical tanks fit into a more narrow space. It is important to think about what kind of fish you will be selecting.
Angel fish are popular, and display best in a vertical tank.
Schooling fish, such as Zebra Danios, are better in horizontal tanks. The aquarium stand holds the aquarium, and certain designs have deluxe storage spaces for fish food and fish books. The stand can be made of a variety of materials. Consider where you are keeping the fish tank and make sure the stand, a piece of furniture, blends with your decor. Wooden crafted stands are available in a variety of styles.