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Coral Saltwater Care: medium Aggression: medium

Mycedium

Mycedium elephantotus
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Other names: Elephant nose coral, Elephant nose chalice, Chalice coral, Mycedium elephantotus
Group: LPS corals · Family: Merulinidae · Origin: Indo-Pacific — wave-sheltered reef environments

A plate-shaped chalice coral whose corallites protrude like noses and face toward the edge of the colony. It is recognized by its colorful mouths and distinct radial ridges; it grows slowly and extends tentacles at night.

Will it suit my tank?

Last updated October 16, 2026

Temperature
24–27°C
pH
8.1–8.4
Light
Medium
Flow
Medium
Diet
Photosynthetic + supplemental feeding
Growth
Slow
Placement
Middle of the rockwork
Aggression
Medium (don't place corals nearby)
Colony size
Up to 30 cm
Minimum tank size
100 liters

Water parameters

Temperature24–27°C
pH8.1–8.4
Recommended range

Overview

October 16, 2026 · Suggest an edit

Mycedium elephantotus is a coral that grows in plates or crusts and is also sold in the trade under the name "chalice." Its most distinctive feature is that its corallites protrude like noses and all lean toward the edge of the colony; this is where the English name "elephant nose" comes from. Radial ridges run between the corallites. The tissue can be brown, gray, green or pink, and the mouths are often a different color. Its trade is subject to CITES Appendix II; choose an aquacultured frag.

Light, Flow and Water Parameters

October 16, 2026 · Suggest an edit
  • Light: Moderate, about 75–200 PAR.
  • Flow: Moderate and indirect.
  • Placement: A horizontal surface in the middle zone of the rockwork; plating forms can also grow on a vertical surface.
  • Water parameters: Salinity 1.024–1.026, KH 7–10 dKH, calcium 400–450 mg/L, magnesium 1250–1350 mg/L; nitrate 2–10 mg/L.

Diet

October 16, 2026 · Suggest an edit

It is photosynthetic. The tentacles open only at night; at that time fine-grained LPS food or mysis can be given once or twice a week.

Neighbors and Compatibility

October 16, 2026 · Suggest an edit

With the tentacles and mesenterial filaments it puts out at night, it can burn neighboring corals; leave at least 10 cm of space around it. Do not let it touch other chalices. Dwarf angelfish and butterflyfish may pick at the tissue.

A short profile for this species

The Mycedium page has the basics, but the sections below have not been written yet. If you keep this species, write a section from your own experience; it will be published under your name after editor approval.

Tank mates

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Should not be kept together

Hobbyist notes

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Change history and contributors
  1. Page created · October 16, 2026