Lichen Coral

About

Lichen coral (Porites lichen) is one of those workhorses of the reef world that quietly shapes entire ecosystems while looking deceptively simple up close. Across the Indo-Pacific, it commonly dominates lagoon floors and reef slopes from the shallows down to significant depths, forming broad flat plates, fused nodules, or columnar structures depending on local conditions. The corallites tend to arrange themselves in loose, irregular rows separated by low ridges, giving the surface a subtly textured appearance rather than the dramatic geometry you see in some other genera. Coloration is typically a bright yellowish-green, though brown specimens are not unusual, and the tone can shift depending on light availability and zooxanthellae density. In the aquarium, Porites as a group has a reputation for being hardier than many other small-polyp stony corals, but lichen coral still deserves respect. It wants strong, consistent lighting and moderate water movement to thrive, and the stable, pristine water quality that any serious SPS keeper maintains. It is not the most forgiving coral for beginners, but an intermediate keeper with a well-established reef system and reliable parameters should find it a rewarding long-term resident that gradually builds impressive structure over time.