Mosaic Favia

Mosaic Favia, Favia spp. and related species, is a colorful reef-building coral known for its fleshy tissue, pronounced corallites, and intricate multicolor patterning. This specimen displays rich purple to burgundy tissue accented by vivid yellow-green highlights and lighter fluorescent areas, producing a striking mosaic-like appearance across the colony.

Favia-type corals form colonies made up of individual corallites supported by a calcium carbonate skeleton and covered by thick fleshy tissue. Their corallites are generally distinct from one another, creating pronounced ridges, valleys, and rounded contours that give the colony a sculpted appearance.

The Mosaic Favia is particularly attractive because its coloration varies across the colony rather than appearing as a single uniform pattern. Deep purple and burgundy areas are broken by bright yellow-green streaks, patches, and highlights, creating strong contrast under reef aquarium lighting. Blue-rich illumination can further emphasize the fluorescent green and yellow portions of the tissue.

Like other photosynthetic reef-building corals, Favia-type corals contain symbiotic photosynthetic dinoflagellates that supply much of their nutritional energy. Their fleshy polyps are also capable of capturing small planktonic and meaty foods, particularly when feeding tentacles are extended.

Stable reef aquarium chemistry is important for maintaining healthy tissue expansion, coloration, and skeletal growth. Consistent alkalinity, calcium, magnesium, temperature, salinity, and nutrient levels are preferable to frequent swings. Low to moderate indirect water movement helps keep the coral free of accumulated debris while allowing the fleshy tissue to expand naturally.

Favia-type corals can be aggressive toward neighboring colonies and may extend sweeper tentacles beyond the visible edge of the tissue, especially at night. Adequate space should therefore be provided between the Mosaic Favia and nearby corals.

Because exact identification among Favia and closely related genera may depend on skeletal characters that cannot be confirmed reliably from a photograph alone, Favia spp. and related species is the most responsible identification for this aquarium specimen.

Care Guide:

Scientific Identification: Favia spp. and related species
Common Name: Favia / Brain Coral
Care Level: Easy to Moderate
Lighting: Low to Moderate
Water Flow: Low to Moderate, indirect and variable
Placement: Lower to middle areas of the aquarium depending on lighting intensity
Temperament: Aggressive; may extend sweeper tentacles and sting neighboring corals
Reef Compatibility: Reef safe with adequate spacing
Feeding: Primarily photosynthetic; may also benefit from occasional appropriately sized meaty, planktonic, or coral-specific foods
Growth Form: Encrusting to massive reef-building colony with fleshy tissue covering distinct corallites
Water Parameters: Maintain stable reef aquarium temperature and salinity with consistent alkalinity, calcium, and magnesium. Maintain measurable and reasonably stable nitrate and phosphate levels.
Special Considerations: Allow several inches between the Mosaic Favia and neighboring corals because sweeper tentacles can extend beyond the visible colony margin. Avoid strong direct flow that prevents normal tissue expansion. Gradually acclimate the coral when moving it into stronger lighting and avoid abrupt changes in alkalinity, salinity, or nutrient levels.