The Hammer Coral is a large polyp stony (LPS) coral. Its common names are derived from the appearance of its hammer shaped tentacles. Its polyps are visible throughout the day and night and hide the skeletal base. It may be gold, green, tan, or brown in color, with lime green, yellow or pink tips on the ends of its tentacles that glow under actinic lighting. This coral is beautifully gold in color!
With proper water conditions in the aquarium, the Hammer Coral will thrive. It will require moderate lighting combined with moderate water movement within the aquarium. At night, its sweeper tentacles can extend up to six inches in the reef aquarium, allow plenty of room between it and other neighboring corals. For continued good health, it will also require the addition of calcium, magnesium, strontium, Iodine and other trace elements to the water.