Common name: Knob coral

General information

Favia stelligera, commonly known as Stellar Favia Coral or Honeycomb Coral, is a species of stony coral that is popular among reef aquarium enthusiasts. This coral is known for its hardiness and the beautiful, dome-shaped colonies it forms. The polyps of Favia stelligera are often colorful, with hues ranging from green to brown, and they can exhibit contrasting colors on their oral discs and the surrounding corallite walls.

Care

Favia stelligera is a relatively easy coral to maintain, making it suitable for both beginners and advanced hobbyists. It thrives in moderate lighting conditions and benefits from moderate water flow, which helps to keep the polyps free of detritus and provides essential nutrients. Feeding is not strictly necessary, as this coral hosts zooxanthellae, symbiotic algae that provide most of its nutritional needs through photosynthesis. However, supplemental feeding with fine particulate foods can promote growth and enhance coloration.

Symbiosis

Like many stony corals, Favia stelligera forms a mutualistic relationship with zooxanthellae, which live within its tissues. The coral provides the algae with a protected environment and compounds necessary for photosynthesis, while the algae supply the coral with oxygen and organic products of photosynthesis, which are crucial for the coral's growth and health.

Habitat

Favia stelligera is found in the Indo-Pacific region, typically in shallow reef environments. It prefers areas with moderate light and water flow, which are conducive to the growth of its symbiotic algae. In the wild, these corals can be found at various depths, often forming extensive colonies that contribute to the complex structure of coral reefs.