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Frogspawn Coral
Euphyllia divisa
Family: Euphylliidae
📍 Indo-Pacific Reef Systems
Frogspawn Coral is a popular LPS coral whose branching skeleton terminates in clusters of rounded, grape-like polyp tips that sway mesmerisingly in gentle water movement — resembling a mass of frog eggs. It is one of the three classic Euphyllia corals (alongside Hammer and Torch) and shares their care requirements. It has potent sweeper tentacles that can sting corals placed nearby, so adequate spacing within the reef aquarium is essential.
Keeping this species
- diet
- Photosynthetic (zooxanthellae); supplement with mysis shrimp, copepods 2–3x weekly
- flow
- Moderate, indirect
- lifespan
- Decades in well-maintained reef
- lighting
- Moderate (50–150 PAR)
- placement
- Lower to mid rockwork; space away from other corals
- tank size
- 30 gallons minimum reef tank
- temperament
- Has sweeper tentacles; moderately aggressive toward nearby corals
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Tips from the community 💡
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Water it likes
- ph
- 8.1–8.4
- calcium
- 400–450 ppm
- nitrate
- 1–10 ppm
- salinity
- 1.024–1.026 SG
- magnesium
- 1250–1350 ppm
- phosphate
- 0.03–0.1 ppm
- alkalinity
- 8–11 dKH
- temperature
- 73–81°F (23–27°C)
Natural Habitat Temperature
79°F — 81°F seasonal range · (Jan low, Feb high)