Rainbow Trachyphyllia – #18
Trachyphyllia is a type of large polyp stony (LPS) coral, also known as an open brain coral, known for its beautiful, often brightly coloured, and fleshy tissue that covers a rough, skeletonised base. These free-living corals are found in a range of colours, such as green, yellow, and red, and are prized for their diverse and intense coloration in reef aquariums. While relatively easy to care for, they require specific conditions, including moderate lighting and flow, and must be placed with ample space from other corals due to their semi-aggressive nature and ability to sting.
Morphology
| Feature | Description |
|---|---|
| Body Structure | Rough, skeletonised base with fleshy, brightly coloured tissue |
| Colour Range | Green, yellow, red, and other vibrant hues |
| Polyp Type | Large polyp stony (LPS) coral |
| Common Name | Open brain coral |
FAQ
What lighting conditions does Rainbow Trachyphyllia require?
Rainbow Trachyphyllia thrives under moderate lighting conditions. It does not require high-intensity lighting but benefits from consistent, even light distribution to support healthy tissue growth.
How should I position this coral in my aquarium?
Place Rainbow Trachyphyllia with ample space from other corals to avoid contact. Its semi-aggressive nature and stinging capability can cause damage to nearby polyps.
Is this coral suitable for beginners?
Yes, Rainbow Trachyphyllia is considered relatively easy to care for, making it a good choice for experienced reef keepers who understand the need for proper lighting, flow, and spacing.

Joseph Wilson –
The coral has grown well in my 120-liter reef tank. It shows vibrant coloration and remains stable with moderate lighting. I keep it in a corner with plenty of space from other corals to avoid any contact issues.
Anthony MacDonald –
It’s a striking addition to my tank. The colors are vivid and the growth is steady. I adjusted the flow slightly to match its needs and now it’s thriving without any aggression toward nearby corals.
Heather Tucker –
I’ve had this coral for three months and it’s developed a beautiful rainbow pattern. The lighting and flow settings I used are standard, and it’s been very stable since installation.