Description
The Purple Linckia Starfish (Linckia sp., often L. laevigata color morph or Leiaster teres) is a striking echinoderm known for its deep purple coloration, long, slender, cylindrical arms with rounded tips, and sometimes a "fuzzy" or smooth, firm texture. These sea stars are popular in the marine aquarium hobby for their vibrant color and peaceful nature, though they are considered expert-only due to specialized feeding requirements.
Description and Characteristics
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Coloration: Ranges from deep purple to lavender, often with a velvety, "fuzzy" appearance.
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Size: Can grow up to 30 cm (11.8 in) in diameter, with aquarium specimens often seen around 8 inches.
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Arms: Five long, cylindrical arms that are slightly tapered, often appearing like "Play-Doh" models.
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Tube Feet: Possesses short, bright yellow tube feet used for movement, which contrasts with the purple body.
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Regeneration: Possesses remarkable regenerative capabilities, able to regenerate a whole new star from a single severed arm.
Habitat and Behavior
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Range: Found throughout the tropical Indo-Pacific region, inhabiting coral reefs and seagrass beds at depths of 6 to 85 meters.
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Diet: Primarily a detritivore and scavenger, feeding on bacterial films, sponges, and microorganisms on rocks.
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Activity: Generally active during the day, moving slowly across rocks and sand.
Aquarium Care Requirements
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Acclimation: Requires a very slow, long drip acclimation (at least 2.5 to 4 hours) to adjust to new water parameters.
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Tank Size: Requires large, well-established aquariums (usually 55-100+ gallons) with ample live rock to support their feeding needs.
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Sensitivity: Very intolerant of sudden changes in salinity, pH, and oxygen levels. They are highly sensitive to copper-based medications.
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Diet in Captivity: Feeds on established bacteria films and microfauna in the tank; they are difficult to target-feed, making a mature tank essential.
