Duncan

£16.00£99.00

Variable Sizes

Due to the nature of corals, colours may vary slightly.

  • Duncan
  • Duncanopsammia axifuga
  • Hard coral. LPS
  • Care Level: Easy
  • Suitable for: Beginners
  • Light: Moderate
  • Flow rate: Moderate
  • Food: Photosynthetic and will feed on small meaty foods
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Duncans are extremely attractive, large polyp corals, that make great additions to marine tanks. They feature wide teal or green oral discs that sport masses of short tentacles that can be purple, green or blue.

Please note that the images displayed on our website are intended as a guide only. We have done our utmost to provide the closest representation possible for this type of coral, to help give an idea of what to expect. Corals are living organisms that can exhibit significant variation in colour and appearance due to a range of environmental and genetic factors. For example, the following are a few examples of conditions that can influence how corals look:

  • Lighting: The brand, spectrum, intensity, and duration of light play a major role in how corals display their colours.
  • Transit: Corals may change colour after being moved. They may either regain their original appearance or adapt to suit their new environment.
  • Water Chemistry: Elements such as pH, salinity, and trace minerals can subtly or significantly alter a coral’s appearance.
  • Nutrition: The availability and type of nutrients can affect both colouration and growth.

With this in mind, please be aware that actual specimens may differ in appearance.

Defining Characteristics.

Duncan Corals are easily identifiable by their long, tubular fingers with polyps branching off and forming dense, flower-like structures. Their structure is characterized by fleshy polyps that extend during the day, creating a swaying effect in the water. They are quite identifiable so are not easily confused with other corals.

Taxonomy.

Duncan Coral belongs to the genus Duncanopsammia and the family Dendrophylliidae. The most commonly collected species within this genus is Duncanopsammia axifuga. They are closely related to other corals within the Dendrophylliidae family, known for their similar structural characteristics and care requirements.

Distribution.

Duncan Corals are native to the Indo-Pacific region, particularly around Australia, where they thrive in the rich, biodiverse reef environments. Their widespread distribution in these warm waters contributes to their availability in the aquarium trade.

Natural Habitat.

In the wild, Duncan Corals typically grow on reef slopes and lagoon areas where the water flow is moderate. They prefer environments with stable water parameters and moderate lighting, which supports their symbiotic relationship with photosynthetic algae.

Symbiotic Relationship.

Duncan Corals maintain a symbiotic relationship with zooxanthellae algae, which live within their tissues. These algae perform photosynthesis, producing glucose, glycerol, and amino acids that supply up to 90% of the coral’s energy needs. In return, the coral provides the algae with a protected environment and access to metabolic waste products. If stressed, Duncan Corals may expel their zooxanthellae, leading to a loss of colour, known as bleaching.

Keeping Duncan Coral Healthy.

These corals are a relatively easy species to care for, thanks to their resilient nature and their ability to cope with a range of light conditions. In addition, this is a peaceful coral species. They will not harm neighbouring corals but they should still be given space to allow growth. This makes Duncan corals a great option for the beginner hobbyist.

Light Level.

Duncan Corals can be happy under a wide range of lighting conditions and their colour stays relatively consistent at varying intensities. It is advisable to start them under lower light and gradually increase exposure to find the perfect balance. Overexposure can lead to the expulsion of zooxanthellae. Corals will react differently under various light intensities and spectrums. Feel free to ask for advice to ensure optimal lighting conditions.

Flow Rate.

Moderate water flow is ideal for Duncan Corals. They need a good current to ensure they exchange waste with the water column and to prevent smothering, without causing damage to the polyps. This flow rate helps mimic their natural habitat conditions.

Feeding.

While Duncan Corals derive most of their nutrients from their symbiotic algae, they benefit from occasional feeding. Providing small meaty foods like brine shrimp or plankton directly to their polyps using a pipette or coral feeder can enhance their growth and overall health. All our corals are fed on Coral foods such as, amino acids and plankton. Target feeding with a pipette or coral feeder helps ensure the food reaches the polyps directly.

Reproduction.

1) Sexual Reproduction.

Most corals engage in sexual reproduction through a process known as spawning. During spawning events, corals release eggs and sperm into the water column simultaneously. This typically occurs in a synchronized manner, often triggered by environmental cues such as temperature changes, moon phases, and day length. The synchronization maximizes the likelihood of fertilization.

2) Asexual Reproduction.

One common form of asexual reproduction in corals is budding, where new polyps bud off from parent polyps. This process can occur within the same colony, helping it grow and expand.

3) Importance of Reproduction in Coral Ecology.

Coral reproduction is crucial for the maintenance and expansion of coral reefs. Sexual reproduction introduces genetic diversity, which enhances the resilience of coral populations to environmental stressors such as climate change, diseases, and bleaching events. Asexual reproduction allows for the rapid expansion of colonies and the repair of damaged areas within a reef.

Summary.

Duncan Corals are relatively easy to care for, making them suitable for beginners. They are resilient to moderate changes in water parameters but can be sensitive to sudden fluctuations. They are generally peaceful and do not exhibit aggressive behaviour towards neighbouring corals. However, they do need some space to allow their polyps to extend fully. Healthy Duncans can grow quickly in lower light conditions and moderate flow rates. Low current speed is important to allow the coral to feed easily. If water flow is too fast then the corals ability to capture prey can be hampered. Duncan corals host photosynthetic algae but they can benefit from occasional feeding. Duncans can be target fed plankton or meaty foods.