Aussie Blue Duncan (WYSIWYG)

Price is per frag, each frag has 10+ heads

Duncan coral (Duncanopsammia axifuga), also known as the whisker or daisy coral, is a popular LPS (Large Polyp Stony) coral due to its ease of care and striking appearance. It’s a great choice for both beginner and experienced reef aquarists. Here’s a detailed guide on how to care for Duncan coral:

Water Parameters:

1. Temperature: 24-27°C (75-81°F)

2. pH: 8.1-8.4

3. Alkalinity: 8-12 dKH (aim for stability)

4. Calcium: 400-450 ppm (important for skeletal growth)

5. Magnesium: 1250-1350 ppm

6. Nitrates: 1-10 ppm (low nitrates preferred but they can tolerate moderate levels)

7. Phosphates: < 0.03 ppm

8. Salinity: 1.024-1.026 (specific gravity)

Lighting:

• Moderate: Duncan corals prefer moderate lighting (PAR range: 50-150). They do well under various lighting conditions, but too much intense light can cause them to retract.

• If placed under strong lighting, ensure gradual acclimation to avoid bleaching.

Water Flow:

• Moderate: Duncan corals thrive in low to moderate water flow. The flow should be enough to sway their tentacles gently without blasting them directly. Strong flow can prevent them from extending their polyps fully, while very low flow can lead to detritus buildup.

Placement:

• Low to Mid-Level: Place Duncan corals in areas of moderate lighting and moderate water flow. They can be placed on rockwork or the substrate, as long as they are not in direct path of high-flow areas.

• Duncan corals are relatively peaceful and can be placed near other corals, but be mindful of more aggressive species that could sting them.

Feeding:

• Regular Target Feeding: Duncan corals are photosynthetic, but they also benefit from supplemental feedings, which can encourage faster growth.

• Target feed with small meaty foods such as mysis shrimp, brine shrimp, or coral-specific foods 1-2 times a week.

• Using a turkey baster or pipette, gently direct food towards the polyps so they can capture it.

Stability and Tank Maintenance:

• Stable Water Conditions: Like other LPS corals, Duncan corals appreciate stable water parameters. Sudden changes in temperature, salinity, or chemistry can stress them.

• Regular Water Changes: Performing regular water changes helps maintain water quality, which is essential for the coral’s health. Keep an eye on nutrient levels (nitrates and phosphates) to ensure they remain within acceptable ranges.

Growth and Propagation:

• Fast Grower: Duncan corals are known to grow relatively fast compared to some other LPS corals, especially when fed regularly. They grow by budding new heads from the base of existing polyps.

• Propagation: Duncan corals can be fragged easily by cutting between the heads with bone cutters. Each individual polyp will continue to grow into a new colony when placed in suitable conditions.

Challenges:

• Sensitivity to Flow: While Duncan corals are generally hardy, they can be sensitive to very strong water flow. If they remain retracted for long periods, it may indicate that they are experiencing too much direct flow.

• Pests and Predators: Occasionally, pests like flatworms or nudibranchs can irritate the coral. Regular observation can help prevent any issues.

Compatibility:

• Duncan corals are generally peaceful and can coexist with other non-aggressive corals. However, be careful with corals that have long sweeper tentacles or are aggressive, as they can damage the Duncan coral’s delicate polyps.

With the right care—moderate lighting, gentle to moderate water flow, regular feeding, and stable water parameters—Duncan corals can be a rewarding and beautiful addition to any reef tank, known for their stunning appearance and active polyps. They are relatively hardy and adaptable, making them a great coral for aquarists of all experience levels.