In DragonVale for the Android & iOS devices (iPhone, iPad, etc.), the Coral Dragon is a new Water & Fire dragon similar to the Salamander Dragon.
The Coral Dragon has a base breeding time of 11 hours and 30 minutes, sells for 800,000 coins, and earns 14,000 XP for successful breeding once you reach level 14.
To get a Coral Dragon, breed dragons with Water & Fire attributes. This can either be a regular Water Dragon and a Fire Dragon, or hybrid dragons that contain these attributes.