Euphyllia divisa - The Frogspawn Coral
One of the more popular species of Large Polyp Stony Corals is the Frogspawn coral, Euphyllia divisa. They have some easily met requirements and they sport some really cool colors. The frogspawn can be quite aggressive with other corals though and they need plenty of space between themselves and other corals due to the long sweeper tentacles.
If you’re interested in reading up on this coral check out the Frogspawn coral page.