The Convict Chalice coral (Echinophyllia sp.) is a striking LPS coral named for its bold, striped pattern. It’s a great choice for hobbyists ready to move beyond beginner corals, as long as you respect its sting and give it stable conditions.

Placement, Lighting & Flow

Convict Chalices prefer moderate conditions and room to grow.

• Placement: Start it on the sandbed or a low rock ledge so it can adjust. Move it up slowly over several weeks if you want more color intensity.
• Lighting: Moderate PAR (80–150). Too much light can cause bleaching or washed-out colors. If you’re unsure, shade it slightly and brighten over time.
• Flow: Low to moderate, indirect flow. The tissue is fleshy and can tear under strong, direct current.
• Space: Leave 3–4 inches between it and neighbors. Convict Chalices have long sweeper tentacles at night.

Feeding & Long-Term Care

Good nutrition and stable water parameters are the keys to vivid color and growth.

• Target feeding: 1–2 times per week with small meaty foods (mysis, finely chopped shrimp, reef roids). Feed after lights out when feeding tentacles are extended.
• Parameters: Keep alkalinity 8–9 dKH, calcium 420–450 ppm, magnesium 1300–1400 ppm, and nitrates 5–15 ppm. Avoid big swings.
• Acclimation: Use drip acclimation and light acclimation. Chalices often sulk for a few days; don’t move them repeatedly.
• Pest checks: Dip new frags for flatworms and nudibranchs. Inspect the underside of the plug before adding to your display.

Tip: If your Convict Chalice starts receding, reduce light intensity slightly, improve stability, and increase small, frequent feedings. Recovery is possible if you act early.