16/09/2026
🪸 CORAL WINDOW | Fungia, the Mushroom Coral
*Phu Quoc, Vietnam*
🌊 Easy Steps to the Underwater World
Welcome to Coral Window, a small journey into the world of corals, coral reefs, and marine biology.
Today, we take a closer look at Fungia, a fascinating mushroom coral that you may encounter while snorkeling around Phu Quoc.
🔬 What is Fungia?
Fungia is a genus of stony corals belonging to the family Fungiidae. Unlike many reef-building corals that form large colonies, Fungia is generally solitary.
An adult Fungia can live freely on the seabed, resting on sand, rubble, or other surfaces. Its hard skeleton is covered by living coral tissue, making it a living animal rather than a plant or an empty shell.
🌱 How does it live?
A young Fungia begins its life attached to a surface. As it develops, it can detach and become a free-living adult.
This ability to live independently on the seabed is one of the most interesting features of mushroom corals.
🍽️ How does it feed?
Fungia gets energy from two main sources:
• Microscopic symbiotic algae living in its tissues produce energy through photosynthesis.
• Its tentacles capture plankton and other small food particles from the surrounding water.
The mouth is located in the centre of the coral disc. When its soft tissue and tentacles extend, the animal looks very different from the hard skeleton we usually notice.
🌊 Why is it interesting around Phu Quoc?
While snorkeling around Phu Quoc, you may encounter mushroom corals resting individually on the seabed rather than growing as part of a large branching colony.
They are a reminder that coral reefs are not just colourful underwater landscapes. They are living ecosystems made up of animals with their own life cycles, feeding strategies, and adaptations.
Every coral has a story. Sometimes, all it takes is a closer look.
📸 Macro photograph from Phu Quoc, Vietnam.
🪸 Coral Window | Easy Steps to the Underwater World
