Euphyllia is a genus of hard stony corals that are native to the Indo-Pacific region of the world and are classified as Large Polyp Stony or LPS corals. There are a number of species, most of which are primarily seen in marine aquariums- Hammer Corals, Torches, Frogspawn, Grape, and Bubble. Many of these species are available as wild or aquacultured. These types of coral prefer meaty food such as shrimp or other chopped up predator blend foods as well as phytoplankton and brine shrimp. While they can add movement to a reef tank and are popular because of their look and bright colors, they are considered more of an advanced coral as they are sensitive to water parameters. These corals have sweeper tentacles which will come out at night, so make sure the tank has enough space so they can be placed away from other corals. If they are unhappy they can pull their flesh a majority of the way into their stony base, which is something that is seen after dipping the coral and adding it to the tank. Make sure to cautiously drip acclimate, placing the line away from the coral itself. The acclimation process will allow the coral to slowly become accustomed to their new environment.