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Datasheet
| Care Description | Hammer corals are an iconic large polyp stony coral (LPS) that has been a staple in the hobby for generations. They are found all throughout the Pacific reefs and come in a variety of colors and growth forms. Hammer corals sometimes grow in a wall formation while other hammers grow in a branching formation. Either variety makes an excellent show piece coral for a reef aquarium however the branching varieties tend to grow more quickly. Please see below for additional care tips for hammer corals. |
| Water Flow | Moderate to Strong |
| Temperature | 22.2°C / 71.96°F - 25.6°C / 78.08°F |
| Specific Gravity | 1.023-1.026 |
| Carbonate Hardness | 8-12 |
| pH | 8.1-8.4 |
General Description
Hammer corals, belonging to the Euphyllia genus, are a beloved large polyp stony coral (LPS) known for their vibrant colors and varied growth forms, such as wall or branching formations. These corals are commonly found in the Pacific reefs and have been a popular choice for reef aquariums due to their striking appearance and slow to moderate growth rate.
Demands and Hardiness
Hammer corals require moderate to strong water movement, which not only benefits their health but also creates a beautiful swaying motion in the aquarium. They are relatively hardy and can thrive in water conditions with a temperature range of 22.2-25.6°C, pH levels between 8.1-8.4, and a salinity of 1.023-1.026. Maintaining a stable alkalinity level of 8-12 dKH is crucial for the health of these corals.
Lighting
While Hammers, Torches, and Frogspawn corals do not demand high-intensity lighting, they do require adequate light for photosynthesis. Normal output fluorescents are generally sufficient for keeping Hammer corals, but placing them under stronger lighting can help enhance their coloration and encourage better extension.
Water Flow
Moderate to strong water movement is recommended for Hammer corals, as it mimics their natural habitat and aids in their overall health. The gentle sway in the current not only benefits the corals but also adds aesthetic appeal to the aquarium, creating a dynamic underwater environment.
Feeding
Although Hammer corals primarily rely on the products of their zooxanthellae for nutrition, they can also benefit from direct feeding. Offering them Mysis Shrimp, small critters, or specially designed coral pellets within a size range of 6 to 13mm can supplement their diet and support their growth. While they may not aggressively feed like some other LPS corals, providing the right food is vital for their well-being.
Propagation
Hammer corals have been successfully propagated in captivity and are an excellent candidate for aquaculture. Branching varieties are particularly suitable for propagation due to their faster growth compared to wall formations. Establishing a sustainable harvest through aquaculture efforts can help conserve wild populations and ensure the availability of these stunning corals for future generations.
Localization & Habitat
Hammer corals are commonly found in the tropical waters of the Pacific Ocean, with frequent harvesting from regions like Fiji, Tonga, the Solomon Islands, and the Great Barrier Reef. Their natural habitats provide insights into the ideal water parameters and conditions required for successfully maintaining these corals in captivity.