Description
Micromussa, formerly known as Acanthastrea, are large polyp stony (LPS) corals popular in reef aquariums. They are known for their vibrant colors and relatively easy care requirements. Two common species are Micromussa lordhowensis (formerly Acanthastrea lordhowensis) and Micromussa amakusensis, distinguished by polyp size, with lords having larger polyps.
General Characteristics:
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Colonial:
Micromussa form colonies of individual polyps, often with a massive, cerioid (forming a tight, even surface) structure.
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Corallites:
The individual polyp cups (corallites) vary in size, with lords having larger corallites than micros.
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Septa:
The septa (radiating plates within the corallite) are prominent, sometimes with beaded edges or teeth.
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Columella:
The central structure within the corallite (columella) can be well-developed or poorly developed.
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Fleshy Tissue:
A thick, fleshy mantle often covers the skeleton, sometimes with papillae (small projections).
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Color:
Micromussa display a wide range of colors, including red, orange, purple, blue, and green, often with contrasting colors in the corallite walls.
Specific Species:
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Micromussa lordhowensis:
Known for its large corallites (up to 15mm) and varied color patterns, often with two contrasting shades.
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Micromussa amakusensis:
Has smaller, angular corallites and is often found with a thick fleshy mantle covered in papillae.
Care Requirements:
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Lighting:
Micromussa generally prefer low to moderate lighting conditions, with some species being susceptible to bleaching or color changes from intense light.
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Water Flow:
Moderate flow is recommended to prevent detritus buildup while still allowing the coral to extend its tentacles for feeding.
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Feeding:
Micromussa are opportunistic feeders and benefit from target feeding with meaty foods like mysis shrimp, krill, or small pellets.
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Placement:
Due to their potential for aggression and long sweeper tentacles, Micromussa should be given ample space and kept away from other corals.
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Acclimation:
Proper acclimation is crucial when introducing new Micromussa to an aquarium.
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Aggression:
Micromussa can be aggressive towards other corals, so adequate spacing is important.
