Euphyllia glabrescens
Euphyllia glabrescens, or Torch coral, is a branching LPS coral with long tentacles that move dramatically in the current. The tentacles end in round or slightly tapering tips, and the coloration varies between green, gold, yellow, purple, and various combinations.
As it grows, the Torch coral forms new coral heads at the ends of its branching calcareous skeleton. Its care requirements are similar to Hammer and Frogspawn corals, but it is often more aggressive.
Features
• Branching LPS coral
• Long tentacles that move in the current
• Forms new, distinct coral heads as it grows
• Available in many vibrant color variations
• Can grow long sweeper tentacles and harm nearby corals
Care
Light: Low–moderate, about 50–150 PAR. Torch corals do not require intense lighting and can open well even in slightly dimmer light. Acclimate new corals to stronger lighting gradually.
Flow: Moderate–strong and varied. Tentacles should move noticeably in the current, but continuous strong direct flow should be avoided. If the tissue constantly presses against the skeleton, the flow is too strong.
Placement: Leave plenty of clear space around the coral. Torch corals can grow long sweeper tentacles whose stinging cells can harm other corals.
Feeding: Gets much of its energy from photosynthetic symbiotic algae, but also benefits from direct feeding. Small pellets, mysis, and other protein-rich foods suitable for LPS corals are appropriate. Torches do not always feed as actively as many other LPS corals.
Recommended Water Parameters
Temperature: 24–26 °C
Salinity: 34–35 ppt
KH: 7–9 dKH
Calcium: 400–450 mg/l
Magnesium: 1250–1400 mg/l
Nitrate: 2–15 mg/l
Phosphate: 0.03–0.15 mg/l
pH: 8.0–8.4
Torch corals build a calcareous skeleton, so the stability of KH, calcium, and magnesium, in particular, is important. The stability of water parameters is more important than hitting exact target values.
Additional Information
Scientific name: Euphyllia glabrescens
Coral type: LPS
Growth habit: Branching
Origin: Indo-Pacific
Difficulty level: Medium
Light: Low–moderate, about 50–150 PAR
Flow: Moderate–strong, varied
Aggressiveness: High