Why did my Golden Girls Cyphastrea Coral fade from bright gold to dull brown or green?

This coral prefers moderate PAR (50–150) and a blue-heavy spectrum; too much white light often washes out gold and boosts zoox pigment, causing browning. Stabilize alkalinity (7.5–9 dKH), keep nutrients detectable (NO3 5–15 ppm, PO4 0.03–0.1), and increase blue/UV channels gradually. Trace balance matters—regular water changes usually restore color without risky dosing.

My Cyphastrea’s polyps rarely extend—what’s the likely cause?

It often extends more after lights out. Daytime retraction can be due to overly strong, direct flow, nearby stingers, vermetid snail filaments, or film algae irritating the surface. Shift to indirect, moderate flow, inspect and remove vermetids, and gently baste the surface to keep it clean. Target-feed fine foods (rotifers, reef powders) at night to encourage routine extension.

Will it overgrow neighbors or get burned by them?

It can slowly carpet nearby zoas, pavona, or other encrusters if given time, but loses to long-sweeper LPS (favia, galaxea, some euphyllia). Leave 2–3 inches from aggressive species and prune back mats before they meet. If contact occurs, move the more mobile piece and place the Cyphastrea on isolated islands to manage its spread.

What’s the fix for sudden tissue recession from the center outward?

Often a combo of light shock, detritus trapping, and parameter swings. Reduce PAR via shading and re-acclimate, increase crossflow to prevent film buildup, and stabilize alk/calcium. Siphon any cyanobacteria or diatoms from the surface. An iodine dip can help curb bacterial stress. Maintain steady nutrients; ultra-low PO4/NO3 frequently accelerates recession in this genus.

TSA Golden Girls Cyphastrea Coral

Beginner Corals LPS Encrusters Cyphastrea

Overview

Golden Girls Cyphastrea Coral displays a golden base with small, raised polyps that give it a textured surface. Cyphastrea sp. Coral is an encrusting stony coral that forms low, spreading mats; it prefers low to moderate light and gentle to moderate water flow. It is photosynthetic with symbiotic algae and accepts fine particulate foods, which can support faster growth and deeper coloration. Place it on stable rock away from aggressive neighbors, and allow space for steady encrusting growth.

Quick Facts

Care Easy

Lighting Low–Moderate

Flow Low–Moderate

Placement Low–Mid

Temperament Peaceful (1–2 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 dKH

Magnesium 1250–1350 ppm

Feeding photosynthetic, microplankton, rotifers, copepod nauplii, cyclops, powdered coral foods (e.g., Reef-Roids), oyster eggs, marine snow, phytoplankton

Care & Placement

Golden Girls Cyphastrea Coral (Cyphastrea sp.) thrives under low to moderate light (50–100 PAR) and gentle to moderate, indirect flow that keeps film and debris from settling without blasting polyps. Start it in shaded, lower areas and gradually adjust over 2–3 weeks to avoid bleaching; this coral is sensitive to sudden intensity increases. Feed fine particulate foods 1–2 times weekly (reef-specific micro foods, rotifers, very small mysis) by gentle target or broadcast feeding with pumps paused; polyps extend more at night. Keep temperature 75–79°F (24–26°C), salinity 1.025–1.026, pH 8.0–8.4, alkalinity 8.0–9.5 dKH, calcium 400–450 ppm, magnesium 1250–1350 ppm, nitrate 5–15 ppm, and phosphate 0.03–0.10 ppm. Test alkalinity and salinity frequently (refractometer preferred) and avoid ultra-low nutrients, which can dull color and slow growth.Place frags low to mid on rockwork with clean surfaces and room to encrust; avoid sand contact. Space at least 2–3 inches from aggressive neighbors (e.g., favia, galaxea) to prevent stings, but note that Cyphastrea itself is mild and can be outcompeted by faster encrusters—trim as needed. Acclimate with a coral dip and light acclimation schedule; stable parameters matter more than speed. Common issues: tissue recession from trapped detritus (increase gentle flow, baste weekly), bleaching from excess light (move to shade, shorten photoperiod), and closed polyps from high flow or pests (reduce direct blast, inspect and treat). Suitable for nano to large reefs if stability and moderate nutrients are maintained.

FAQ

Frequently Asked Questions

About the TSA Golden Girls Cyphastrea Coral

Why did my Golden Girls Cyphastrea Coral fade from bright gold to dull brown or green?

This coral prefers moderate PAR (50–150) and a blue-heavy spectrum; too much white light often washes out gold and boosts zoox pigment, causing browning. Stabilize alkalinity (7.5–9 dKH), keep nutrients detectable (NO3 5–15 ppm, PO4 0.03–0.1), and increase blue/UV channels gradually. Trace balance matters—regular water changes usually restore color without risky dosing.
My Cyphastrea’s polyps rarely extend—what’s the likely cause?

It often extends more after lights out. Daytime retraction can be due to overly strong, direct flow, nearby stingers, vermetid snail filaments, or film algae irritating the surface. Shift to indirect, moderate flow, inspect and remove vermetids, and gently baste the surface to keep it clean. Target-feed fine foods (rotifers, reef powders) at night to encourage routine extension.
Will it overgrow neighbors or get burned by them?

It can slowly carpet nearby zoas, pavona, or other encrusters if given time, but loses to long-sweeper LPS (favia, galaxea, some euphyllia). Leave 2–3 inches from aggressive species and prune back mats before they meet. If contact occurs, move the more mobile piece and place the Cyphastrea on isolated islands to manage its spread.
What’s the fix for sudden tissue recession from the center outward?

Often a combo of light shock, detritus trapping, and parameter swings. Reduce PAR via shading and re-acclimate, increase crossflow to prevent film buildup, and stabilize alk/calcium. Siphon any cyanobacteria or diatoms from the surface. An iodine dip can help curb bacterial stress. Maintain steady nutrients; ultra-low PO4/NO3 frequently accelerates recession in this genus.