Description
Duncanopsammia axifuga, commonly known as the Duncan Coral, is a highly regarded large-polyp stony (LPS) coral prized for its long, flowing polyps and exceptional feeding response. Featuring extended tentacles with rounded tips emerging from sturdy tubular skeletons, Duncan Coral adds movement and depth to reef aquariums while remaining one of the most peaceful and personable LPS species available. Its responsiveness to feeding and tolerance of a wide range of conditions make it a favorite among both novice and experienced reef keepers.
Native to Australian reef environments, Duncan Coral thrives in stable aquariums where moderate lighting and gentle flow allow for full polyp extension.
Lighting: Low to moderate (50–150 PAR); adapts well to a range of lighting conditions and maintains good expansion under blue-spectrum LEDs
Flow: Low to moderate; gentle, indirect flow supports healthy polyp movement without causing tissue damage
Placement: Bottom to mid-level areas on rockwork or substrate with room for polyp expansion
Temperature: 76–80°F (24–27°C)
Salinity: 1.0265 SG (35 PPT)
pH: 8.1–8.4
Alkalinity: 8–10 dKH
Calcium: 420–450 ppm
Magnesium: 1300–1400 ppm
Nutrients: Moderate; stable nutrients promote strong feeding response and growth
Feeding: Photosynthetic but benefits greatly from regular target feeding with mysis shrimp, brine shrimp, or finely chopped meaty foods
Aggression: Low; non-aggressive and reef-friendly
Growth Rate: Moderate; forms branching colonies over time under favorable conditions
Care Level: Easy – hardy, forgiving, and well suited for most established reef aquariums
Compatibility: Peaceful; compatible with most corals and reef-safe fish
