The Discus

The Discus is known as the "King of the Aquarium". Perhaps the most beautiful of all tropical fish, the Discus is also one of the more difficult tropical fish to keep and is not recommended for beginners.
They require excellent water conditions, frequent water changes and higher water temperatures than most other tropical fish. Most successful keepers house them in a species only tank because of the high water temperature requirement. There are many color varieties to choose from with many more being introduced all the time. If you are interested in this fish, be prepared to spend some jack on this one of a kind tropical fish.