Why does my JF Avatar Chalice lose teal/purple pop under bright lights?

This coral is adapted to lower light. Under high PAR, fluorescent pigments can bleach or shift, muting teal and purple. Target 50–120 PAR with a blue-heavy spectrum and acclimate slowly. Maintain stable nutrients (NO3 5–15 ppm, PO4 0.03–0.1 ppm); ultra-low nutrients wash out color. If faded, reduce intensity 20–30%, increase blue, and allow 2–4 weeks for recovery.

The rim is receding while the eyes look fine—what’s causing the “burn line” effect?

Rapid alkalinity swings often show first at the growing rim of chalices. Aim for 7.5–8.5 dKH with changes ≤0.3 dKH/day. Check for sand abrasion on the edge and vermetid snail irritation. Improve stability, blow off debris with a bulb syringe, and consider an iodine dip. Place the frag on rock to avoid grit rubbing the tissue.

How aggressive is the JF Avatar at night, and how far should I space it?

Echinophyllia can extend nighttime sweepers 2–4 inches, stinging nearby corals—especially acans and zoas. Give 3–5 inches of clearance and avoid direct flow that can carry stings farther. If space is tight, mount the chalice lower and slightly vertical so the rim grows away from neighbors, reducing contact and shading conflicts.

My chalice plates outward and shades itself—how do I keep growth even?

The Avatar tends to form undulating plates. Mount on a slight vertical or angled surface so the rim gets uniform light and flow. Periodically rotate the frag/colony 90 degrees every few weeks. Keep flow moderate and indirect to prevent detritus settling on inner folds. Trim overly long ledges to open light to shaded areas.

JF Avatar Chalice Coral

Chalice

Overview

JF Avatar Chalice Coral shows a flattened, plating surface with raised eyes and contrasting color swirls. Classified as Echinophyllia sp., it is a hard plating coral that prefers moderate lighting and gentle to moderate, indirect flow. It is photosynthetic via symbiotic algae but benefits from occasional small meaty foods, which can support faster growth and deeper coloration. Place on stable rock with space around it, as sweeper tentacles and a strong sting can damage nearby corals.

Quick Facts

Care Moderate

Lighting Low–Moderate

Flow Moderate, indirect

Placement Low–Mid

Temperament Aggressive (6–8 inches spacing)

Recommended Parameters

Temp 76–80°F

pH 8.1–8.4

Salinity 1.025–1.026

Calcium 400–450 ppm

AlkAlkalinity 8–9.5 dKH

Magnesium 1280–1350 ppm

Feeding photosynthetic, microplankton, zooplankton, rotifers, cyclops, reef roids and other powdered coral foods, marine snow, finely minced mysis shrimp, enriched brine shrimp

Care & Placement

JF Avatar Chalice Coral (Echinophyllia sp.) thrives with stable conditions, gentle handling, and moderate nutrients. Place it low to mid in the tank, on a horizontal ledge or sandbed, with low–moderate, indirect flow to keep detritus from settling without lifting tissue. Provide low–moderate light (50–150 PAR); start on the lower end and slowly increase over 2–3 weeks using a screen or reduced photoperiod to avoid bleaching. Target feed after lights out 1–2 times weekly with small meaty foods (mysis, reef roids, finely chopped seafood) when feeding tentacles extend; this supports growth and color. Maintain temperature 75–79°F (24–26°C), 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 weekly and avoid quick swings, especially in alkalinity.Give 3–6+ inches of space; chalices can send long nighttime sweepers and are sensitive to stings from torches, hammers, and acans. Keep away from fast encrusters (e.g., Montipora) that can overgrow it. Dip new frags to reduce pests, secure the piece so edges don’t lift, and keep the surface clear of sand. Signs of stress include paling (too much light), tissue recession (parameter swings or pests), and algae at the rim (excess nutrients or low flow). Correct by shading, stabilizing parameters, adjusting flow, and increasing targeted feeding. Quarantine when possible, observe at night for aggression, and use a PAR meter if available for consistent lighting.

FAQ

Frequently Asked Questions

About the JF Avatar Chalice Coral

Why does my JF Avatar Chalice lose teal/purple pop under bright lights?

This coral is adapted to lower light. Under high PAR, fluorescent pigments can bleach or shift, muting teal and purple. Target 50–120 PAR with a blue-heavy spectrum and acclimate slowly. Maintain stable nutrients (NO3 5–15 ppm, PO4 0.03–0.1 ppm); ultra-low nutrients wash out color. If faded, reduce intensity 20–30%, increase blue, and allow 2–4 weeks for recovery.
The rim is receding while the eyes look fine—what’s causing the “burn line” effect?

Rapid alkalinity swings often show first at the growing rim of chalices. Aim for 7.5–8.5 dKH with changes ≤0.3 dKH/day. Check for sand abrasion on the edge and vermetid snail irritation. Improve stability, blow off debris with a bulb syringe, and consider an iodine dip. Place the frag on rock to avoid grit rubbing the tissue.
How aggressive is the JF Avatar at night, and how far should I space it?

Echinophyllia can extend nighttime sweepers 2–4 inches, stinging nearby corals—especially acans and zoas. Give 3–5 inches of clearance and avoid direct flow that can carry stings farther. If space is tight, mount the chalice lower and slightly vertical so the rim grows away from neighbors, reducing contact and shading conflicts.
My chalice plates outward and shades itself—how do I keep growth even?

The Avatar tends to form undulating plates. Mount on a slight vertical or angled surface so the rim gets uniform light and flow. Periodically rotate the frag/colony 90 degrees every few weeks. Keep flow moderate and indirect to prevent detritus settling on inner folds. Trim overly long ledges to open light to shaded areas.

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