Mycedium spp.

Mycedium spp. are a genus of large polyp stony (LPS) corals belonging to the family Pectiniidae. These corals are prized for their unique, often plate-like or encrusting growth forms and vibrant colours, making them a desirable addition to marine reef aquariums.

Care Level: Moderate. Due to the variability within the genus and the limited species-specific data, conservative husbandry practices are recommended.

Lighting: Moderate lighting is ideal. LED or T5 lighting systems providing a PAR range of approximately 50-150 µmol/m²/s support healthy growth without causing bleaching.

Water Flow: Moderate, indirect water flow is preferred to prevent tissue damage while ensuring adequate nutrient and gas exchange.

Placement: Place Mycedium spp. on stable rockwork or substrate in areas where they receive moderate light and flow. Allow sufficient space from neighbouring corals to avoid aggression and ensure optimal health.

Diet: Primarily photosynthetic via symbiotic zooxanthellae, but will benefit from occasional supplemental feeding of meaty foods such as phytoplankton, marine snow, or specialised coral foods.

Reef Compatibility: Yes, with adequate spacing. Mycedium spp. can extend sweeper tentacles and may sting nearby corals, so maintain appropriate distances.

Origin & Size: Origin and maximum size vary within the genus and are not precisely documented. Typically, these corals remain manageable in home aquaria when given proper care.

Additional Notes: Maintain stable water parameters typical for reef tanks: temperature 24-27°C, salinity 1.023-1.025, calcium 400-450 ppm, alkalinity 8-12 dKH, and magnesium 1250-1350 ppm. Regular monitoring and water changes will support coral health.