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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 family Euphyllia, are large polyp stony corals (LPS) known for their iconic presence in reef aquariums. They can be found across Pacific reefs, displaying a range of colors and growth forms, with some growing in branching structures while others in wall formations.
Demands and Hardiness
Hammer corals, such as the Aussie Super Green Hammer, thrive in reef aquariums with moderate to strong water flow. They do not require high-intensity lighting, making them suitable for placement under normal output fluorescents, although more vibrant colors may be seen under stronger lighting. While they primarily rely on zooxanthellae for nutrition, direct feeding with Mysis Shrimp and small pellets can also benefit them.
Lighting
Hammers, like Torches and Frogspawn, prefer low to moderate lighting levels in aquarium settings. While they can survive under ambient lighting, stronger lighting may enhance their coloration and encourage better extension.
Water Flow
Moderate to strong water movement is recommended for Hammer corals. Their characteristic swaying motion in the current not only adds to their visual appeal but also ensures a healthy environment for their growth and well-being.
Feeding
Although Hammer corals primarily rely on their zooxanthellae, they can benefit from direct feeding with small critters and pellets. Branching varieties tend to grow faster compared to wall formations and may require more frequent feeding.
Propagation
Hammer corals have been successfully propagated in captivity, making them a promising candidate for aquaculture. However, their relatively slower growth rate compared to other stony corals poses a challenge for large-scale commercial aquaculture. Branching varieties are preferred for propagation due to their faster growth potential.
Localization & Habitat
This species of coral is commonly found in tropical waters across the Pacific region, including islands like Fiji, Tonga, Solomon Islands, and the Great Barrier Reef. Its widespread distribution makes it a popular choice among reef aquarists worldwide.