Cages should be made to fit the needs of the pet that you will put in it. A tall, narrow cage will accommodate a climbing branch for an arboreal or tree dwelling animal, such as a chameleon. A low, wide cage is needed for the roving terrestrial or ground dwelling animal, such as a tortoise. House your pets by their size and their kind. Only mix your pets if they are known to be compatible.
Cages can be aquariums with screen covers or they can be wooden cages with glass fronts.
Sometimes they are indoor atriums. When the weather permits, they can simply be a backyard enclosure or a pond area. The aquatic terrarium is like an aquarium. First you will need a vented or wire screen top. This allows air to circulate through the terrarium as well as giving you a place set a basking lamp.