Acan Lord Coral

Micromussa lordhowensis

Also known as Acan, Micromussa lordhowensis, Acanthastrea lordhowensis, Lord Coral

SaltwaterCoral

Care at a glance

Temperature
75–81°F (24–27°C)
pH
8.1–8.4
Adult size
5.9 in (15 cm)
Minimum tank
11 gal (40 L)
Temperament
Mostly peaceful
Social behavior
Solitary
Swim level
Bottom
Difficulty
Medium
Breeding
Medium
Rarity
Common
Reef safe
Reef safe
Origin
Australia and the western Pacific
Family
Lobophylliidae

Overview

A moderately aggressive but manageable LPS that can extend feeder tentacles and sting corals placed right against it, so give it a few inches of space. It responds dramatically to feeding with mysis, brine or coral foods once or twice a week, showing better color and faster growth. Prized for its color morphs and easily fragged polyp by polyp.

In the wild

Acan Lords come from reefs around Australia and the western Pacific and form encrusting mats of rounded, fleshy polyps in bright, high-contrast color combinations that make them one of the most collected LPS. They prefer lower light around 50 to 100 PAR and low to moderate indirect flow, since too much light bleaches them and too much flow keeps the polyps retracted. Place them on the sandbed, lower rock or a shaded overhang at 24 to 27 C and pH 8.1 to 8.4.

Good to know

Long known as Acanthastrea lordhowensis, this coral was reclassified in 2016 as Micromussa lordhowensis, though the trade name Acan stuck. It is a large polyp stony coral in the family Lobophylliidae that grows by adding new polyps to the mat. It is photosynthetic but a strong feeder that extends feeder tentacles at night.

Did you know

Single Acan polyps of rare color morphs have sold for eye-watering prices, making a fist-sized colony worth more per square inch than almost any other coral in the hobby.

Appears in

Corals

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