Purple Tip Hammer

Hammer Coral Care Requirements

Care Level: Moderate

Hammer corals are a popular large-polyp stony (LPS) coral that are relatively hardy once established but require stable water conditions to thrive. They prefer moderate lighting, gentle to moderate indirect water flow, and consistent calcium, alkalinity, and magnesium levels. Hammer corals can extend sweeper tentacles and may sting nearby corals, so adequate spacing is recommended.

Care Requirements

• Care Level: Moderate
• Lighting: Moderate
• Water Flow: Low to moderate, indirect
• Placement: Middle to lower areas of the aquarium
• Temperature: 76–80°F (24–27°C)
• Salinity: 1.024–1.026 SG
• Alkalinity: 8–12 dKH
• Calcium: 400–450 ppm
• Magnesium: 1250–1350 ppm
• Aggression: Moderate (can sting neighboring corals)
• Diet: Primarily photosynthetic; benefits from occasional supplemental feeding
• Suitable For: Beginner to intermediate reef aquarists