Why does my JF Buzz Kill Cyphastrea retract polyps and fade under bright lights while other SPS thrive?

Cyphastrea sp. is adapted to shaded, turbid habitats; high PAR often causes chronic retraction and washed-out colors. Target 50–120 PAR with a blue-heavy spectrum and moderate, indirect flow. If color has already faded, reduce light over 1–2 weeks, stabilize alkalinity, and allow nutrient levels (nitrate 5–15 ppm, phosphate 0.03–0.1 ppm) to rebound for pigment recovery.

The encrusting edge keeps stalling or receding when it reaches bare rock—what’s the fix?

The growth rim is sensitive to irritation and competition. Eliminate nearby vermetids and sweep away detritus that traps film algae on the edge. Increase random flow slightly to keep the rim clean, and raise trace/iodine via regular water changes. If recession starts, trim back to firm tissue, iodine dip, and remount on a clean surface.

Can JF Buzz Kill coexist with aggressive LPS, and how close is safe?

It’s comparatively peaceful and loses to long-sweeper LPS (euphyllia, galaxea). Give 3–4 inches of space down-current to avoid stings and mucous drift. Cyphastrea can slowly overgrow zoas and small encrusters, so use a sand moat or a removable tile boundary. Watch for chemical stress signs: localized tissue thinning and persistent night-time retraction.

What’s the best propagation method for this morph without causing long-term slowdown?

Use bone cutters or a diamond wheel to take small, rim-including chips; clean, shallow cuts heal fastest. Rinse, then iodine or povidone dip, and mount on scuffed, pre-cured plugs for better adhesion. Keep frags in low-moderate light and moderate flow for 1–2 weeks. Avoid sawing through fresh, fleshy rims or cutting during alkalinity swings.

JF Buzz Kill Cyphastrea Coral

Overview

JF Buzz Kill Cyphastrea Coral displays an encrusting growth with tightly packed, small polyps that form a textured surface. Cyphastrea sp. is a small-polyp stony coral that does well in low to moderate light and gentle to moderate water flow. It is photosynthetic with symbiotic algae but will accept fine particulate or meaty foods, which can support growth and color. Place on stable rock with space to spread and avoid direct contact with aggressive corals.

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 400–450 ppm

AlkAlkalinity 8–9.5 dKH

Magnesium 1250–1350 ppm

Feeding photosynthetic, microplankton, rotifers, cyclops, zooplankton, powdered coral foods, reef roids, marine snow

Care & Placement

JF Buzz Kill Cyphastrea Coral (Cyphastrea sp.) prefers low to moderate light (PAR ~50–120) and gentle, indirect flow that keeps detritus from settling without blasting tissue. Place frags low to mid in the tank, often on shaded rock faces or the back wall; avoid the sand where it can be buried. Start in lower light and gradually increase over 2–3 weeks to prevent bleaching. Feed 1–2x weekly with small-particle foods (reef roids, rotifers, fine mysis slurry) during evening polyp extension for better growth and color. Maintain stable parameters: 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 1250–1350 ppm, nitrate 2–10 ppm, phosphate 0.03–0.08 ppm. Test weekly (alk more often), use an ATO for salinity stability, and watch for signs of stress like paling, receding edges, or algae trapping detritus.Cyphastrea is generally peaceful with short sweepers, but it encrusts steadily; give 1–2 inches of space and avoid aggressive neighbors (Galaxea, Euphyllia, Favias). Secure frags well, keep moderate flow to limit film algae, and run carbon if mixing with soft corals. Acclimate with a dip and pest inspection (vermetid snails, nudibranchs, flatworms). Troubleshooting: bleaching = too much light; slow tissue loss = unstable alkalinity or ultra-low nutrients; slime/algae on tissue = too little flow or dirty surfaces. Increase stability, adjust placement, and target feed to recover.

FAQ

Frequently Asked Questions

About the JF Buzz Kill Cyphastrea Coral

Why does my JF Buzz Kill Cyphastrea retract polyps and fade under bright lights while other SPS thrive?

Cyphastrea sp. is adapted to shaded, turbid habitats; high PAR often causes chronic retraction and washed-out colors. Target 50–120 PAR with a blue-heavy spectrum and moderate, indirect flow. If color has already faded, reduce light over 1–2 weeks, stabilize alkalinity, and allow nutrient levels (nitrate 5–15 ppm, phosphate 0.03–0.1 ppm) to rebound for pigment recovery.
The encrusting edge keeps stalling or receding when it reaches bare rock—what’s the fix?

The growth rim is sensitive to irritation and competition. Eliminate nearby vermetids and sweep away detritus that traps film algae on the edge. Increase random flow slightly to keep the rim clean, and raise trace/iodine via regular water changes. If recession starts, trim back to firm tissue, iodine dip, and remount on a clean surface.
Can JF Buzz Kill coexist with aggressive LPS, and how close is safe?

It’s comparatively peaceful and loses to long-sweeper LPS (euphyllia, galaxea). Give 3–4 inches of space down-current to avoid stings and mucous drift. Cyphastrea can slowly overgrow zoas and small encrusters, so use a sand moat or a removable tile boundary. Watch for chemical stress signs: localized tissue thinning and persistent night-time retraction.
What’s the best propagation method for this morph without causing long-term slowdown?

Use bone cutters or a diamond wheel to take small, rim-including chips; clean, shallow cuts heal fastest. Rinse, then iodine or povidone dip, and mount on scuffed, pre-cured plugs for better adhesion. Keep frags in low-moderate light and moderate flow for 1–2 weeks. Avoid sawing through fresh, fleshy rims or cutting during alkalinity swings.