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Torch Coral
Euphyllia glabrescens
Animalia›Cnidaria›Anthozoa›Euphylliidae
📍 Indo-Pacific Reef Systems
Torch coral is a striking LPS coral with long flowing polyps tipped in gold, white, or green that wave like flames in gentle current. It shares care requirements with other euphyllia corals but is somewhat more sensitive to elevated nutrients and temperature spikes. Torch coral disease (rapid tissue necrosis) can devastate colonies, so quarantine new specimens.
Tank Mates
Hardy reef fish that respect coral spacing; compatible with stable reef conditions
Beneficial for reef health; will not harm corals and help maintain water quality
Peaceful scavengers that help control algae and detritus without bothering corals
Small, reef-safe fish that won't disturb coral placement or feeding
Algae-eating snail that maintains tank cleanliness without harming corals
Common Diseases
Torch Coral Disease (Rapid Tissue Necrosis)
Rapid tissue recession, visible skeleton exposure, brown or black discoloration, polyp retraction and failure to extend
Immediately isolate affected coral; perform 25% water change; reduce nutrient levels (phosphate, nitrate); maintain stable temperature and salinity; consider antibiotic dips if caught early; remove severely affected tissue if possible
Brown Jelly Infection
Brown, slimy film covering coral tissue; rapid tissue loss; foul odor; polyps fail to extend
Isolate coral immediately; perform daily 50% water changes in quarantine; remove affected tissue with clean tools; treat with iodine-based dips or antibiotics; maintain pristine water quality
Coral Bleaching
Loss of color, polyps appear white or pale, reduced feeding response, tissue thinning
Reduce lighting intensity temporarily; check and stabilize water temperature (avoid fluctuations); increase water flow slightly; ensure adequate calcium and alkalinity; reduce nutrient spikes; may recover if stressor is removed quickly
Parasitic Infection
White spots or film on tissue, excessive mucus production, polyp damage, visible parasites under magnification
Quarantine affected coral; perform freshwater dips (1-2 minutes); treat with copper-free parasite medications; maintain excellent water quality; monitor for secondary infections
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Quick Facts
- diet
- Photosynthetic; supplement with mysis shrimp, reef roids twice weekly
- flow
- Low to moderate, indirect
- lifespan
- Decades
- lighting
- Low to moderate (30–100 PAR)
- placement
- Lower rockwork
- tank size
- 30 gallons minimum reef tank
- temperament
- Has long sweeper tentacles; keep clear of other corals
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)