The Tongue Coral is a large polyp stony coral that is commonly referred to as the Tongue, Mole, or Hairy Tongue Coral. It has scientific name as Polyphyllia secies, which is derived from polys means many and phyllon as leaf that describes the leafy shape of its calcareous skeleton. The Tongue Coral requires additional supplements in the form of calcium, strontium and trace elements in order to build its calcareous skeleton for the proper growth. It is named appropriately as ?slipper? or ?tongue?, since it has colonies shaped long and narrow, arched or flat. The Tongue Coral is solitary, aggressive coral with short tentacles tipped in white that inflicts serious damage to other corals in contact. It is best to place it on the bottom of the reef aquarium, and requires bright lighting combined with moderate water movement. The Tongue Coral needs fine sandy substrate with adequate space between it and neighbors. It is easy to keep and care, and that makes the Tongue Coral a good choice for a beginner aquarist. It thrives well in a temperature range of 72-78 degrees Fahrenheit and pH of 8.1-8.4. Strong water flow may hamper the complete opening up of this species, so it should not be placed in an area of high current flow. Placing it on a hard surface may stress this Polyphillia species leading to its demise eventually. The Tongue Coral prefers to move around in the aquarium, therefore ample space is recommended for its locomotion without any hindrance. It derives its nutrition chiefly from photosynthesis that is done by the entrapped zooxanthellae in its tissue. The Tongue Coral expands its polyp to shift its base to a well illuminated region of the marine aquarium while photosynthesis.