Once hatched, dragons must be placed into a Habitat. Different types of Habitats exist for each different element, and a dragon must be placed into a Habitat that corresponds with its own element. Dragons with more than one element can be placed in either type of Habitat.
NOTE: The Ice and Metal Habitats need help from your friends in order to be opened, like other buildings, as the Stadium. If you can afford (or don't have any friends), open them with . Large Ice and Metal habitats can be opened without hiring friends or using gems on PC.