Common name: Giant Sun Polyp

General information

Protopalythoa grandis, commonly known as the Giant Sun Polyp or simply as Zoanthid, is a species of large polyp stony coral that is popular among reef aquarium enthusiasts. These corals are known for their impressive size, with polyps that can extend several inches across, and their vibrant colors, which can range from deep greens to rich purples. They are a hardy species, making them suitable for a variety of tank conditions.

Care

Giant Sun Polyps are relatively easy to care for, but they do require stable water conditions and moderate to high lighting to thrive. They are photosynthetic and host zooxanthellae, symbiotic algae that provide them with nutrients through photosynthesis. However, they also benefit from supplemental feeding of planktonic foods or finely minced meaty foods. Adequate water flow is important to keep their polyps free of debris and to facilitate feeding.

Symbiosis

While Protopalythoa grandis does not have the same kind of symbiotic relationships with fish or invertebrates as some other corals or anemones, their large polyp size can provide shelter for small, benthic organisms in the reef aquarium. Additionally, their symbiosis with zooxanthellae is crucial for their nutrition and coloration.

Habitat

In the wild, Protopalythoa grandis is typically found in shallow, warm waters where they attach to hard substrates. They are often located in areas with moderate to strong water flow, which helps to deliver nutrients and remove waste products. Their natural range includes the Indo-Pacific region, where they are a common sight on reef slopes and lagoons.