Euphyllia Coral

Environment

Mature reef aquarium of 200 liters minimum. Medium to intense lighting (PAR 100-200), with shaded areas available for gradual acclimation. Moderate flow (indirect and random flow) to wave the tentacles without damaging them. Parameters: salinity 1.024-1.026, KH 7-10 dKH, calcium 400-450 mg/L, magnesium 1250-1350 mg/L, nitrates <10 mg/L, phosphates 0.03-0.08 mg/L. Stable temperature 24-26°C. Placement on stable substrate, middle zone of tank, with 15-20 cm safety space around (stinging tentacles extend at night).

Feeding

Symbiotic zooxanthellae provide 70-80% of energy needs via photosynthesis. Supplemental feeding 2-3 times/week: brine shrimp, mysis, chopped krill, mussel or shrimp meat (3-5 mm pieces). Feed in the evening when tentacles are extended, directly on the polyps. Avoid overfeeding which pollutes the water. Well-fed specimens show better growth and coloration.

Tips & tankmates

Progressive light acclimation essential (start at bottom of tank, move up over 2-3 weeks). Highly stinging tentacles: wear gloves, maintain distances from other corals. Semi-aggressive: deploys sweeper tentacles up to 20 cm at night. Sensitive to abrupt parameter changes and stress (handling). Monitor prolonged retraction (sign of stress, parasites, or poor water quality). CITES Appendix II species: certificate required for international trade. Prefer aquacultured specimens (frags) which are more robust and ethical. Compatible with peaceful fish; beware of angelfish, butterflyfish, and certain blennies that may nip tissues.

Sources

• Coral Magazine - Euphyllia Care Guide
• ReefBuilders - LPS Coral Maintenance
• CITES Appendices