Metallic Purple Hammer Coral

The Hammer Coral, Fimbriaphyllia ancora, is one of the most popular and recognizable large polyp stony (LPS) corals in the reef aquarium hobby. Its distinctive hammer- or anchor-shaped polyps sway in the current, adding a sense of motion and life to any reef tank. This unique appearance, combined with its general hardiness, makes it a longtime favorite for both new and experienced hobbyists. This coral is known for its branching skeletal structure from which its fleshy polyps extend. The polyps are tipped with hammer-like shapes, creating a flowing, meadow-like effect. While commonly seen in shades of green and brown, Fimbriaphyllia species can also exhibit more sought-after colorations, including purplish tones. The movement of its polyps is a key reason many aquarists choose to add this species to their collection. For best results, provide low to moderate lighting, in the range of 75-150 PAR. Hammer corals can be sensitive to overly intense light. Water flow should be gentle to moderate and indirect; strong, direct flow can prevent the polyps from fully extending and may cause tissue damage. Place the coral in the lower to middle section of the aquarium on a stable rock. While photosynthetic, it benefits from occasional target feeding with meaty foods like mysis or brine shrimp. To maintain proper growth, keep calcium between 400-450 ppm, alkalinity between 8-12 dKH, and magnesium between 1250-1350 ppm. Be aware that Hammer Corals have potent sweeper tentacles that can extend several inches at night, so leave at least six inches of space between them and other corals. Acclimate slowly using a drip method to prevent shock. The Hammer Coral is a classic addition that brings graceful movement and a unique texture to a reef aquarium. Its presence can create a beautiful focal point, and its active appearance offers a different dynamic than more static corals. It is a rewarding species for aquarists who can provide for its needs. This is a What You See Is What You Get (WYSIWYG) item. The coral you see in the photograph is the exact specimen you will receive. This provides a clear and accurate representation of the piece you are purchasing for your aquarium.