Why does my Island Paradise Chalice coral brighten under blue lights but brown out under whites?

Echinophyllia from deeper, turbid slopes is tuned to blue-dominant spectra. Strong white channels (especially high red/green) can fuel zooxanthellae density, muting fluorescence and causing browning. Run a blue-heavy schedule with modest overall PAR (80–150), ramp intensity slowly after shipping, and keep NO3 5–15 ppm, PO4 0.03–0.1 ppm. Excessively “clean” water or sudden light increases both dull color and trigger recession.

The colony is receding from the rim inward—what’s the likely cause and fix?

Edge recession in chalices often follows alkalinity swings, detritus settling on concave plates, or excessive flow abrading tissue at the rim. Stabilize dKH (7.5–9.0 with <0.2 daily swing), redirect flow to gentle, indirect patterns, turkey-baste debris off weekly, and feed small particulate/micro-mysis at night. If necrosis marches, iodine dip and clean frag the healthy margin 3–5 mm ahead with a diamond saw.

How can I maintain the vivid “island” color patches and prevent dull merging?

Color zoning around “eyes” depends on stable nutrients, trace balance, and spectrum. Avoid near-zero nutrients; periodic low-dose amino acids and frequent small feedings sustain pigments. Keep iron and manganese within normal reef ranges via balanced trace supplements or regular water changes; over-iron can push green dominance. Prevent self-shading by rotating the piece 15–30 degrees monthly so all lobes receive similar blue PAR.

Are sweeper tentacles an issue with nearby acros or other chalices?

Yes. At night, Echinophyllia can deploy 2–4 inch sweepers and release strong nematocysts; they commonly win stinging contests, especially against other chalices. Allow 3–6 inches (more in high flow) of buffer, position on an isolated rock/island to avoid contact, and run fresh carbon and regular water changes to mitigate chemical warfare. Watch for tissue pitting on neighbors as an early sign of skirmishes.

TSA Island Paradise Chalice Coral

Q: How can I maintain the vivid “island” color patches and prevent dull merging?

Color zoning around “eyes” depends on stable nutrients, trace balance, and spectrum. Avoid near-zero nutrients; periodic low-dose amino acids and frequent small feedings sustain pigments. Keep iron and manganese within normal reef ranges via balanced trace supplements or regular water changes; over-iron can push green dominance. Prevent self-shading by rotating the piece 15–30 degrees monthly so all lobes receive similar blue PAR.

Q: Are sweeper tentacles an issue with nearby acros or other chalices?

Yes. At night, Echinophyllia can deploy 2–4 inch sweepers and release strong nematocysts; they commonly win stinging contests, especially against other chalices. Allow 3–6 inches (more in high flow) of buffer, position on an isolated rock/island to avoid contact, and run fresh carbon and regular water changes to mitigate chemical warfare. Watch for tissue pitting on neighbors as an early sign of skirmishes.

Chalice LPS

Overview

Island Paradise Chalice Coral shows thin, undulating plates with raised eyes and contrasting rims. Echinophyllia sp., a hard plating LPS coral, prefers low to moderate light and gentle to moderate water flow. It is photosynthetic with symbiotic algae but benefits from occasional small meaty feedings at night to support growth and color. Place on the sandbed or lower rockwork with space around it, and keep distance from other corals due to sweeper tentacles and stings.

Quick Facts

Care Moderate

Lighting Low–Moderate

Flow Low–Moderate

Placement Low–Mid

Temperament Aggressive (6+ inches spacing)

Recommended Parameters

Temp 76–82°F

pH 8.1–8.4

Salinity 1.025–1.026

Calcium 420–450 ppm

AlkAlkalinity 8–9 dKH

Magnesium 1280–1350 ppm

Feeding photosynthetic, microplankton, rotifers, copepods, cyclops, coral-specific powdered foods, finely chopped mysis shrimp, enriched brine shrimp

Care & Placement

Island Paradise Chalice Coral (Echinophyllia sp.) prefers stable, nutrient-moderate systems with gentle conditions. Target lighting in the low–moderate range (PAR ~75–150); start low and slowly increase to avoid bleaching. Provide low to moderate, indirect flow—enough to keep the surface clean without lifting tissue. Feed 1–3 times weekly after lights dim with small meaty foods (mysis, reef roe, fine pellets) or a coral food slurry; spot-feed lightly to avoid rapid nutrient spikes. Keep temperature 24–26°C/75–78°F, salinity 1.025–1.026, pH 8.1–8.4, alkalinity 8.0–9.5 dKH, calcium 400–450 ppm, magnesium 1300–1400 ppm, nitrate 2–10 ppm, phosphate 0.03–0.08 ppm. Test alkalinity, calcium, and magnesium weekly; use a refractometer for salinity and a PAR meter or careful shading for light acclimation. Stability is more important than chasing exact numbers.Place on the bottom or lower mid-level on a flat, stable rock or plug, away from sharp edges. Leave 4–6 inches from neighbors; this coral can throw nighttime sweepers and will overgrow slower species. Avoid direct contact with aggressive LPS or fast encrusters. Drip acclimate 30–60 minutes, then light-acclimate with reduced intensity or shade for 1–2 weeks. Dip new pieces to exclude pests. Gently baste to remove detritus. Signs of stress include fading/bleaching (too much light), receding edges (alk swings or excessive flow), and brown jelly (infectious; frag away dead tissue and increase flow slightly). Keep hands off the flesh, minimize air exposure, and wear gloves when handling.

FAQ

Frequently Asked Questions

About the TSA Island Paradise Chalice Coral

Why does my Island Paradise Chalice coral brighten under blue lights but brown out under whites?

Echinophyllia from deeper, turbid slopes is tuned to blue-dominant spectra. Strong white channels (especially high red/green) can fuel zooxanthellae density, muting fluorescence and causing browning. Run a blue-heavy schedule with modest overall PAR (80–150), ramp intensity slowly after shipping, and keep NO3 5–15 ppm, PO4 0.03–0.1 ppm. Excessively “clean” water or sudden light increases both dull color and trigger recession.
The colony is receding from the rim inward—what’s the likely cause and fix?

Edge recession in chalices often follows alkalinity swings, detritus settling on concave plates, or excessive flow abrading tissue at the rim. Stabilize dKH (7.5–9.0 with <0.2 daily swing), redirect flow to gentle, indirect patterns, turkey-baste debris off weekly, and feed small particulate/micro-mysis at night. If necrosis marches, iodine dip and clean frag the healthy margin 3–5 mm ahead with a diamond saw.
How can I maintain the vivid “island” color patches and prevent dull merging?

Color zoning around “eyes” depends on stable nutrients, trace balance, and spectrum. Avoid near-zero nutrients; periodic low-dose amino acids and frequent small feedings sustain pigments. Keep iron and manganese within normal reef ranges via balanced trace supplements or regular water changes; over-iron can push green dominance. Prevent self-shading by rotating the piece 15–30 degrees monthly so all lobes receive similar blue PAR.
Are sweeper tentacles an issue with nearby acros or other chalices?

Yes. At night, Echinophyllia can deploy 2–4 inch sweepers and release strong nematocysts; they commonly win stinging contests, especially against other chalices. Allow 3–6 inches (more in high flow) of buffer, position on an isolated rock/island to avoid contact, and run fresh carbon and regular water changes to mitigate chemical warfare. Watch for tissue pitting on neighbors as an early sign of skirmishes.