How do I keep the “Golden Girls” coloration vibrant without bleaching my Cyphastrea?

Aim for low–moderate PAR (60–120) with a strong blue spectrum. Too much white light or PAR >150 can wash the gold to pale or greenish tones; too little light browns it out. Light-acclimate over 2–3 weeks, maintain stable alkalinity and nutrients (nitrate 5–15 ppm, phosphate 0.03–0.1), and avoid sudden carbon dosing that can strip color.

My ACI Golden Girls is encrusting over nearby rockwork—how do I control its spread?

Mount it on a small “island” plug or isolated rock with a sand moat. If it approaches prized corals, cut a shallow chisel line in the rock or create a “frag fence” using bare epoxy. It has a modest sting but wins by slow overgrowth, so physical barriers and periodic trimming are effective.

The coral has patchy recession at the edges—what’s the likely cause and fix?

Common triggers are alkalinity swings, vermetid snails casting mucus nets, or detritus grinding into the skin under low flow. Verify dKH stability (target 8–9), remove vermetids at the base, and increase random flow just enough to keep the surface clean without blasting polyps. Iodine-based dips help if early bacterial irritation is suspected.

What feeding strategy actually benefits this Cyphastrea?

Nighttime broadcast of fine foods (rotifers, reef roids, powdered zooplankton) 1–3 times weekly supports tissue and color. Turn off skimmer/return for 20–30 minutes to keep particles suspended. Don’t overfeed; this species thrives with moderate nutrients and stable chemistry more than heavy target feeding.

ACI Golden Girls Cyphastrea Coral

Beginner Coral Encrusters LPS Cyphastrea

Overview

ACI Golden Girls Cyphastrea Coral shows golden-yellow polyps on a contrasting base with small star-like corallites. Cyphastrea sp. is an encrusting hard coral that forms a bumpy surface; it prefers low to moderate light and gentle to moderate water flow. It relies on symbiotic algae for most nutrition but accepts fine particulate foods, which can support growth and maintain color. Place it on stable rock away from aggressive neighbors, and allow space for gradual encrusting expansion.

Quick Facts

Care Easy

Lighting Low–Moderate

Flow Low-Moderate

Placement Low–Mid

Temperament Peaceful (2–3 inches spacing)

Recommended Parameters

Temp 76–80°F

pH 8.1–8.4

Salinity 1.025–1.026

Calcium 420–450 ppm

AlkAlkalinity 8–9.5 dKH

Magnesium 1250–1350 ppm

Feeding photosynthetic, microplankton, rotifers, copepods, cyclops, oyster eggs, baby brine shrimp nauplii, coral-specific powdered foods (e.g., Reef-Roids), marine snow

Care & Placement

ACI Golden Girls Cyphastrea Coral (Cyphastrea sp.) thrives in stable, low-to-moderate light and gentle, indirect flow. Target 50–120 PAR; too much light can bleach or wash out color, so start shaded and increase slowly over 2–3 weeks. Provide low-to-moderate, cross-flow to keep detritus from settling without blasting the tissue. Feed fine particulate foods 1–3 times weekly (reef roids, rotifers, cyclops, very fine mysis slurry); broadcast feeding at night often yields best polyp extension. Keep temperature 75–78°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 1300–1400 ppm, nitrate 2–10 ppm, phosphate 0.03–0.08 ppm. Monitor with reliable test kits and a calibrated refractometer; this coral is sensitive to rapid swings, especially in alkalinity.Place low to mid in the tank on rockwork where it can encrust; give 2–3 inches of space. It is generally peaceful with short tentacles but can overgrow neighbors over time; avoid proximity to aggressive LPS and very fast encrusters. Acclimate by temperature matching, a 20–40 minute drip, dip for pests, and light acclimation via screen or reduced intensity. Common issues: bleaching from excess light (reduce intensity, raise nutrients slightly), tissue recession from unstable alkalinity or detritus buildup (stabilize parameters, adjust flow), and browning from high nutrients or very low light (improve export, increase light gradually). Mounting on an “island” rock helps contain spread and simplifies maintenance.

FAQ

Frequently Asked Questions

About the ACI Golden Girls Cyphastrea Coral

How do I keep the “Golden Girls” coloration vibrant without bleaching my Cyphastrea?

Aim for low–moderate PAR (60–120) with a strong blue spectrum. Too much white light or PAR >150 can wash the gold to pale or greenish tones; too little light browns it out. Light-acclimate over 2–3 weeks, maintain stable alkalinity and nutrients (nitrate 5–15 ppm, phosphate 0.03–0.1), and avoid sudden carbon dosing that can strip color.
My ACI Golden Girls is encrusting over nearby rockwork—how do I control its spread?

Mount it on a small “island” plug or isolated rock with a sand moat. If it approaches prized corals, cut a shallow chisel line in the rock or create a “frag fence” using bare epoxy. It has a modest sting but wins by slow overgrowth, so physical barriers and periodic trimming are effective.
The coral has patchy recession at the edges—what’s the likely cause and fix?

Common triggers are alkalinity swings, vermetid snails casting mucus nets, or detritus grinding into the skin under low flow. Verify dKH stability (target 8–9), remove vermetids at the base, and increase random flow just enough to keep the surface clean without blasting polyps. Iodine-based dips help if early bacterial irritation is suspected.
What feeding strategy actually benefits this Cyphastrea?

Nighttime broadcast of fine foods (rotifers, reef roids, powdered zooplankton) 1–3 times weekly supports tissue and color. Turn off skimmer/return for 20–30 minutes to keep particles suspended. Don’t overfeed; this species thrives with moderate nutrients and stable chemistry more than heavy target feeding.