Why does my Pink Frogspawn (Fimbriaphyllia paradivisa) lose its pink coloration under strong light?

Pink morphs often wash out under high PAR or overly white spectra. Aim for moderate PAR (100–200) with a blue-leaning spectrum; gradual acclimation helps. Stable nutrients (not ultra-low) support pigmentation, while excess nutrients push browning. Check alkalinity and trace balance; swings can dull color. If faded, lower intensity 10–20% and extend blue period, then reassess polyp inflation and color over two weeks.

What causes sudden polyp bailout in this species, and can it be reversed?

Bailout is commonly triggered by rapid alkalinity shifts, harsh laminar flow hitting the mouth, or tissue damage from stings or shipping. Move to gentle, random flow, stabilize parameters (especially alk 8–9 dKH), and reduce light for a few days. If only a few heads are affected, isolate them in a low-flow basket; some bailed polyps can reattach on rubble. Iodine dips may help deter secondary infection.

My coral inflates well but shows slow skeletal growth—what tweak helps branching?

Ensure steady calcification support: Ca 420–450 ppm, alk 8–9 dKH, Mg 1300–1400 ppm. Slightly higher, turbulent flow around the base promotes deposit of new aragonite at branch tips (look for white growth rims). Avoid frequent relocations; consistency drives growth. Moderate light is sufficient—pushing PAR rarely speeds skeleton. Occasional small feedings (mysis, roe) fuel tissue, indirectly supporting calcification.

Are there compatibility quirks with torches and clownfish that aren’t obvious?

Torches (Fimbriaphyllia glabrescens) often out-sting frogspawn; leave extra space, as sweepers can reach 3–6 inches. Avoid direct contact with hammers/torches even within the genus. Some clownfish will host and can cause chronic irritation; if tissue stays retracted, add a mesh guard or redirect flow to discourage hosting. Keep alk stable to reduce stress from incidental stings, and quarantine to avoid brown jelly outbreaks.

Pink Frogspawn Coral

Frogspawn

Overview

Pink Frogspawn Coral features branching heads with bubble-tipped tentacles that sway and extend. Fimbriaphyllia paradivisa is a branching large-polyp stony coral that prefers moderate light and gentle to moderate water flow. It relies on symbiotic algae for most nutrition but benefits from occasional small meaty feedings, which can support faster growth and maintain color. Place it where its long sweeper tentacles cannot reach and sting nearby corals, leaving several inches of clearance.

Quick Facts

Care Moderate

Lighting Moderate

Flow Moderate indirect

Placement Mid–Low

Temperament Semi-aggressive (6 inches spacing)

Recommended Parameters

Temp 76–80°F

pH 8.1–8.4

Salinity 1.025–1.026

Calcium 400–450 ppm

AlkAlkalinity 8–10 dKH

Magnesium 1280–1350 ppm

Feeding photosynthetic, mysis shrimp, enriched brine shrimp, finely chopped seafood (krill/shrimp), microplankton, zooplankton, marine snow, coral-specific powdered foods

Care & Placement

Pink Frogspawn Coral (Fimbriaphyllia paradivisa) thrives with stable, moderate conditions and gentle handling. Provide moderate light (PAR ~75–150); too much light can cause bleaching, too little may dull color and slow growth. Start low to mid in the tank and light-acclimate over 1–2 weeks. Aim for gentle to moderate, indirect flow that keeps polyps swaying without whipping; strong, direct jets can cut tissue and promote recession, while weak flow allows detritus buildup. Feed 1–2 times weekly with small meaty foods (mysis, finely chopped shrimp) or coral foods; target feed lightly to avoid fouling the water.Keep temperature 75–79°F (24–26°C), salinity 1.025–1.026, pH 8.1–8.4, alkalinity 8–9.5 dKH, calcium 400–450 ppm, magnesium 1250–1350 ppm, nitrate 2–10 ppm, phosphate 0.03–0.1 ppm. Test weekly and avoid rapid swings—this coral is sensitive to alkalinity instability. Place on a stable rock ledge in the lower to mid zones with 4–6 inches of space; it has stinging sweepers, especially at night. Do not allow contact with other Euphyllia/Fimbriaphyllia to reduce risk of disease spread and chemical warfare. Acclimate by drip (30–60 minutes), handle by the skeleton, and avoid exposing flesh to air. Watch for bleaching (excess light), brown jelly disease (rapid tissue loss—frag away affected heads, increase flow, and improve water quality), and tissue recession (often from too much flow or pests). Keep nipping fish (large angels, butterflies) away; most reef-safe fish and inverts are fine.

FAQ

Frequently Asked Questions

About the Pink Frogspawn Coral

Why does my Pink Frogspawn (Fimbriaphyllia paradivisa) lose its pink coloration under strong light?

Pink morphs often wash out under high PAR or overly white spectra. Aim for moderate PAR (100–200) with a blue-leaning spectrum; gradual acclimation helps. Stable nutrients (not ultra-low) support pigmentation, while excess nutrients push browning. Check alkalinity and trace balance; swings can dull color. If faded, lower intensity 10–20% and extend blue period, then reassess polyp inflation and color over two weeks.
What causes sudden polyp bailout in this species, and can it be reversed?

Bailout is commonly triggered by rapid alkalinity shifts, harsh laminar flow hitting the mouth, or tissue damage from stings or shipping. Move to gentle, random flow, stabilize parameters (especially alk 8–9 dKH), and reduce light for a few days. If only a few heads are affected, isolate them in a low-flow basket; some bailed polyps can reattach on rubble. Iodine dips may help deter secondary infection.
My coral inflates well but shows slow skeletal growth—what tweak helps branching?

Ensure steady calcification support: Ca 420–450 ppm, alk 8–9 dKH, Mg 1300–1400 ppm. Slightly higher, turbulent flow around the base promotes deposit of new aragonite at branch tips (look for white growth rims). Avoid frequent relocations; consistency drives growth. Moderate light is sufficient—pushing PAR rarely speeds skeleton. Occasional small feedings (mysis, roe) fuel tissue, indirectly supporting calcification.
Are there compatibility quirks with torches and clownfish that aren’t obvious?

Torches (Fimbriaphyllia glabrescens) often out-sting frogspawn; leave extra space, as sweepers can reach 3–6 inches. Avoid direct contact with hammers/torches even within the genus. Some clownfish will host and can cause chronic irritation; if tissue stays retracted, add a mesh guard or redirect flow to discourage hosting. Keep alk stable to reduce stress from incidental stings, and quarantine to avoid brown jelly outbreaks.

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