Common name: Lesser star coral

Scientific name: Goniastrea retiformis (Lamarck, 1816)
Lesser star coral or Brain coral  (Goniastrea edwardsi) undersea, Red Sea, Egypt, Sharm El Sheikh, Nabq BayColonies of the corals (Goniastrea) at coral reef in Red sea

General information

Goniastrea retiformis, commonly known as Goniastrea Coral or Honeycomb Coral, is a species of stony coral that is popular among reef aquarium enthusiasts. This coral is known for its distinctive appearance, characterized by its maze-like patterns and honeycomb-like structure. It is a hardy species that can adapt to a variety of tank conditions, making it suitable for both novice and experienced aquarists.

Details

Lighting
50 to 150 PAR
Salinity
S.G. 1.023 to 1.026
Temperature
22 to 26 °C (72 to 79 °F)
Acidity
pH 7.8 to 8.4
Care level
Moderate to easy Calcium & alkalinity levels key
Flow
Moderate Prefers gentle water movement
Aggression
Peaceful

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Cnidarians
    Cnidaria
  3. Class
    Anthozoans
    Anthozoa
  4. Order
    Stony Corals
    Scleractinia
  5. Family
    Brain Corals
    Faviidae
  6. Genus
    Goniastrea
    Goniastrea
  7. Species
    Lesser star coral
    Goniastrea retiformis (Lamarck, 1816)
  8. Synonyms
    Astraea retiformis Lamarck, 1816
    Astraea spongia Ehrenberg, 1834
    Astrea retiformis Lamarck, 1816
    Goniastrea bournoni Milne Edwards & Haime, 1849

Care

Goniastrea Coral requires moderate to high lighting and moderate water flow to thrive in a reef aquarium. It is important to provide stable water parameters and maintain calcium, alkalinity, and magnesium levels to support its skeletal growth. This coral can be fed with a variety of meaty foods and planktonic supplements to enhance its growth and coloration.

Symbiosis

While Goniastrea Coral does not have any specific symbiotic relationships that are as iconic as those of clownfish and anemones, it does host a variety of microfauna within its structure. These tiny organisms can include beneficial bacteria and small crustaceans, which contribute to the overall health of the reef ecosystem.

Habitat

Goniastrea retiformis is found in the Indo-Pacific region, typically in shallow reef environments. It can be found at depths ranging from the intertidal zone to about 20 meters. This coral prefers areas with moderate to strong water movement, which helps to deliver nutrients and remove waste products.