Duncan Coral Starter Care Guide
A practical introduction to duncan coral care, including health risks, water quality, tank setup, food and behaviour.
Use this guide to notice and organize information. Contact a qualified veterinarian for medical concerns or urgent change.
About the Duncan Coral
Duncan coral grows fleshy, flower-like polyps on a branching stony skeleton. New heads form around established branches, and a small frag can become a rounded colony over time.
It is often considered an approachable stony coral, but it still depends on a mature aquarium and stable reef chemistry.
Health risks to know about
Important concerns include tissue recession, bleaching, salinity or alkalinity swings, copper exposure, damage from excessive flow and food being stolen or left to decay between polyps.
Persistent closure, a gaping mouth, brown mucus, exposed skeleton or rapid colour loss needs water testing and expert advice.
Tank, water and equipment
Use a mature reef aquarium with moderate lighting, gentle-to-moderate changing flow and room for the colony to expand without touching neighbours.
Monitor salinity, alkalinity, calcium and magnesium and secure the branching skeleton so it cannot fall.
Food and feeding
Lighting supplies much of its energy, and individual polyps readily accept small coral pellets or suitable marine foods.
Target feed modestly and check that shrimp or fish are not repeatedly pulling food from the mouths.
Behaviour, tank mates and enrichment
Broad daytime polyp extension and quick closing after contact are normal. New heads begin as small buds near the base of existing polyps.
Duncans have a sting, though it is usually less aggressive than many long-tentacled LPS corals, so leave a sensible buffer.
When to contact an aquatic veterinarian
Get help for gasping, collapse, severe wounds, major swelling, inability to stay upright, rapid unexplained deaths or a problem that continues after water parameters are corrected.
Test ammonia, nitrite, nitrate, pH, temperature and salinity whenever behaviour changes. Water quality is part of the medical history, so record results before contacting an aquatic veterinarian.
Read the supporting material
These sources stay with their original publishers. WiseTails links to them and provides its own summary; it does not republish their text or images.
Supports the species-specific care summary for Duncan Coral.
Original source ↗02professional org · Ornamental Aquatic Trade AssociationHow to Test for Water Quality in a Marine Tank / AquariumSupports the aquarium cycling and water-quality context used in this guide.
Original source ↗